[HN Gopher] Commercial tea bags release microplastics, entering ...
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       Commercial tea bags release microplastics, entering human cells
        
       Author : wglb
       Score  : 322 points
       Date   : 2024-12-23 14:47 UTC (8 hours ago)
        
 (HTM) web link (medicalxpress.com)
 (TXT) w3m dump (medicalxpress.com)
        
       | timthelion wrote:
       | Is celulose a 'microplastic' though? Obviosly most tea bags are
       | not made of plastic, at least historically...
        
         | LegitShady wrote:
         | cellulose on its own is not a plastic but they make bioplastics
         | out of cellulose that are plastics.
        
         | mandmandam wrote:
         | These days many tea bags use polymers in their glue; and I
         | don't think this article implied anywhere that cellulose is
         | microplastic:
         | 
         | > The tea bags used for the research were made from the
         | polymers nylon-6, polypropylene and cellulose
        
       | acidburnNSA wrote:
       | What materials do different brands of tea make their tea bags out
       | of, I wonder?
        
         | vinni2 wrote:
         | I wondered the same and unfortunately the manufacturers don't
         | publish the material of the tea bags. I am switching to loose
         | tea and even when I only have tea bags i can take the tea out
         | and brew it in reusable metal thing.
        
         | vouaobrasil wrote:
         | Should be a law to put the materials used on all products, not
         | just foods.
        
         | mhandley wrote:
         | Here's a pretty complete list of UK brands:
         | https://moralfibres.co.uk/the-teabags-without-plastic/
        
         | drunkonvinyl wrote:
         | Nicer teas (pricier usually) come in cotton muslins -
         | https://www.mariagefreres.com/en/tea.html?conditionnement=47.
         | Their Marco Polo tea is my once a year splurge. The bag is tied
         | with string - no glue.
        
         | Fluorescence wrote:
         | The article made me check Yorkshire Tea and I'm not really
         | quite sure. How bad are "plant-based plastics"?
         | 
         | > made from natural fibres like wood pulp and the seal is made
         | with PLA - an industrially compostable, plant-based plastic
         | 
         | > ... so we're following WRAP's advice and avoiding the phrase
         | "plastic free"
         | 
         | https://www.yorkshiretea.co.uk/our-packaging
         | 
         | https://www.yorkshiretea.co.uk/brew-news/plastic-in-tea-bags...
        
       | alwa wrote:
       | I'm surprised to see them characterize the cellulose from a paper
       | teabag as releasing "microplastics." I get that cellulose is a
       | polymer, but do practitioners not distinguish between naturally-
       | occurring polymers and synthetic plastics in this kind of
       | microplastic/nanoplastic research?
       | 
       | When I boil some vegetables, do they leach microplastics into the
       | cooking liquid, or is that something different from what this
       | study is describing?
       | 
       |  _(Edit: on looking to the study itself, it seems like this was
       | more about developing a methodology than asserting anything in
       | particular about the paper teabag, which they described as a
       | random pick stripped from some green teabags from the store.
       | 
       | Specifically I didn't understand it to suggest that synthetic
       | microplastics had gotten bound up in the paper matrix somehow and
       | THAT was what was being released... so maybe it was, after all,
       | just "model intestines absorb cellulose but not super well."
       | 
       | Maybe practitioners would understand the cellulose results to be
       | used like a control here?
       | 
       | https://www.sciencedirect.com/science/article/pii/S004565352...
       | )_
        
         | LegitShady wrote:
         | there are cellulose bioplastics maybe thats what they were
         | testing?
        
           | alwa wrote:
           | It sounded from the methods section like a random paper
           | teabag from the store. It wouldn't surprise me at all if the
           | manufacturing world had moved from paper to some kind of
           | engineered cellulose bioplastic... but I always thought of
           | those more in the context of rayon, and those horrible
           | "bamboo" textiles and foams. (Versus linen made from bamboo
           | fibers, which is lovely :)
           | 
           | Are there other processes that work out cheaper than paper
           | for teabag kind of applications these days?
        
         | mandmandam wrote:
         | > I'm surprised to see them characterize the cellulose from a
         | paper teabag as releasing "microplastics."
         | 
         | I don't think they called cellulose microplastic anywhere. The
         | issue is that commercial teabags these days often aren't using
         | pure paper teabags:
         | 
         | > The tea bags used for the research were made from the
         | polymers nylon-6, polypropylene and cellulose
         | 
         | I believe the polymers are usually coming from the glue keeping
         | the bag together. This is a known issue going back years [0].
         | 
         | 0 - https://www.implasticfree.com/why-you-should-switch-to-
         | plast...
        
           | r00fus wrote:
           | So that's what I remember hearing this years ago: those silky
           | looking teabags diffuse microplastics. Easy to avoid those.
        
             | mandmandam wrote:
             | Er, no. Those silky ones were likely _worse_ , but a lot of
             | the regular looking paper ones have polymer glues releasing
             | microplastic _as well_.
        
               | TeaBrain wrote:
               | Do you have any brands in mind? In the bagged tea with
               | cellulose tea bags that I've bought, they are typically
               | held together by just a staple. I've found this to be the
               | case since I occasionally empty the tea from the teabags
               | into my percolator.
        
               | galleywest200 wrote:
               | PG Tips is a brand that sells those pyramid-shaped
               | teabags that I believe are held together with the glue.
        
               | biggestdummy wrote:
               | In 2018, Unilever announced that they would soon stop
               | using plastics in their teabags.
               | https://www.theguardian.com/environment/2018/feb/28/pg-
               | tips-...
               | 
               | They've since reformulated the bags - can't find any
               | statement about the new flat bags.
        
               | pavon wrote:
               | Pillow style tea bags are fully enclosed paper tea bags
               | with no string or tags, and have a crimp around the rim.
               | I never thought about them using glue, but it makes
               | sense. Some brands I know of that use them are Taylors of
               | Harrogate, Celestial Seasonings, Republic of Tea.
               | 
               | Edit: Also some tea bags for loose leaf tea like t-sac or
               | finum brands have that crimp on the edge. However, t-sac
               | confirms they use glue, but finum specifically claims to
               | not use glues, so maybe it is jumping to conclusions that
               | all bags of these sort do.
        
           | pavon wrote:
           | I'm not a chemist, but skimming the paper it certainly sounds
           | like the cellulose itself is what they are measuring:
           | 
           | > Following, ATR-FTIR analysis was performed in the teabags
           | as well as in the leached mixture of nanoparticles plus
           | fibers (Fig. 3). Both teabags and the leachate suspension
           | matched their polymer composition being two of them
           | petroleum-based polymers like nylon-6 (NY6, sample 1) and
           | polypropylene (PP, sample 2), the third one (from the
           | supermarket) being cellulose (CL, sample 3), a bio-based
           | polymer.
           | 
           | I didn't see any mention of plastic binders or other material
           | in the cellulose sample, just references to cellulose.
           | 
           | On the other hand, it was curious that they purchased the
           | synthetic bags empty, but cellulose bags filled with tea,
           | when it is pretty easy to find empty paper tea bags, so maybe
           | there is something particular about the specific type of
           | cellulose tea bag they chose?
        
             | nativeit wrote:
             | For the bags made of cellulose, yes, for the PP and Nylon-6
             | bags, no:
             | 
             | > To such end, three teabags of different chemical
             | compositions were used in this study: (1) empty nylon-6
             | (NY6) teabags (as a model of polyamide), (2) empty
             | polypropylene (PP) teabags, and (3) commercially available
             | teabags containing tea, and cellulose as the polymer
             | composition.
        
             | thatcat wrote:
             | keyword being cellulose polymer * _composition*_ , there
             | are hydrophobic additives infused into the cellulose fibers
             | that are proprietary. For example:
             | https://patents.google.com/patent/EP0632163A1/en
        
           | alwa wrote:
           | Oh my. I hadn't thought about the adhesives. And just at a
           | gander at the study's figures, their various microplastic
           | signals from the cellulose bag are hard to distinguish from
           | the pure nylon and polypropylene ones. That's a sobering
           | thought...
        
           | 42lux wrote:
           | I've never seen glued teabags in Europe it's usually just a
           | metal staple holding them together.
        
             | seabass-labrax wrote:
             | The United Kingdom has a mixture of both types for sale in
             | supermarkets.
        
             | shreddit wrote:
             | How do these "new" pyramid teabags stay in form? I don't
             | think they use staples...
        
             | d1sxeyes wrote:
             | I don't know where you are in Europe, but I've been to
             | enough of Europe to say that that pretty much everywhere
             | uses teabags that look like this:
             | https://images.app.goo.gl/ZKonRKNqTvfi1qd38.
             | 
             | Sometimes, the top fold is closed over with a small metal
             | staple, but that's not the only place the bag is sealed.
        
           | TeaBrain wrote:
           | "To such end, three teabags of different chemical
           | compositions were used in this study: (1) empty nylon-6 (NY6)
           | teabags (as a model of polyamide), (2) empty polypropylene
           | (PP) teabags, and (3) commercially available teabags
           | containing tea, and cellulose as the polymer composition."
           | 
           | The different teabag composition materials were from separate
           | types of teabags, not composition materials of the same
           | teabag.
        
         | Suppafly wrote:
         | I suspect this is something like Tazo that has the little
         | pyramids make of a nylon type material vs the basic Lipton type
         | tea bag that's just a paper product.
        
           | SoftTalker wrote:
           | I also wonder about those re-usable Keurig pods that are
           | typically a plastic frame with plastic mesh.
        
           | nativeit wrote:
           | According to the comment just above you, that's not the case,
           | it's talking about plain paper bags that are then treated.
           | They link to an NIH page as their source.
        
             | nativeit wrote:
             | That said, the paper states:
             | 
             | > To such end, three teabags of different chemical
             | compositions were used in this study: (1) empty nylon-6
             | (NY6) teabags (as a model of polyamide), (2) empty
             | polypropylene (PP) teabags, and (3) commercially available
             | teabags containing tea, and cellulose as the polymer
             | composition.
        
         | jdietrich wrote:
         | _> do practitioners not distinguish between naturally-occurring
         | polymers and synthetic plastics in this kind of
         | microplastic/nanoplastic research?_
         | 
         | They don't care. This is a junk paper that cites a bunch of
         | other junk papers. It's published in the same junk journal that
         | gave us the junk paper on black plastic kitchen utensils. I
         | can't really say more without risking a defamation suit, but
         | what you're looking at has nothing to do with science.
         | 
         | https://retractionwatch.com/2024/12/18/journal-that-publishe...
         | 
         | https://retractionwatch.com/2024/05/13/publisher-slaps-60-pa...
        
           | perihelions wrote:
           | Related thread,
           | 
           | https://news.ycombinator.com/item?id=42494733 ( _" Journal
           | that published faulty black plastic study removed from
           | science index (arstechnica.com)"_, 63 comments)
        
         | hammock wrote:
         | >the cellulose from a paper teabag
         | 
         | You have a mistaken understanding of paper teabags. They are
         | made of paper, but during manufacturing the paper bag is
         | sprayed with plastic to finish it
         | 
         | (And no, I'm not talking about the silky plastic pyramid style
         | ones. Just the cheap paper ones)
         | 
         | Source: https://pmc.ncbi.nlm.nih.gov/articles/PMC10389239/
        
           | nativeit wrote:
           | The paper states:
           | 
           | > To such end, three teabags of different chemical
           | compositions were used in this study: (1) empty nylon-6 (NY6)
           | teabags (as a model of polyamide), (2) empty polypropylene
           | (PP) teabags, and (3) commercially available teabags
           | containing tea, and cellulose as the polymer composition.
           | 
           | To me, that suggests there were bags included containing no
           | PP or Nylon-6.
        
             | thatcat wrote:
             | it could be a siloxane coating as detailed here:
             | https://patents.google.com/patent/EP0632163A1/en
             | 
             | so 3-20% of the cellulose fiber could be hydrophobic
             | additives
        
           | moffkalast wrote:
           | Yorkshire Tea claims "most of the bag is made from natural
           | fibres like wood pulp and the seal is made with PLA - an
           | industrially compostable, plant-based plastic"
           | 
           | > In environments above 60degC, such as in hot liquids or
           | high-heat exposure, PLA can begin to leach additives or
           | degrade into its lactic acid monomers
           | 
           | Why the fuck are these sodding tic tacs putting 3D printer
           | plastic into tea bags that will be thrown into boiling
           | water?!
           | 
           | https://www.yorkshiretea.co.uk/our-packaging
        
             | cyberpunk wrote:
             | Challenge accepted; I will endeavour to include the phrase
             | "sodding tic tacs" into a Christmas dinner conversation.
             | 
             | Top marks.
        
         | odyssey7 wrote:
         | Thankfully they break down the results per material, so you can
         | care about the other materials and ignore the cellulose results
         | if you like. So, yes, the different types of material are
         | distinguished from one another.
         | 
         | > The tea bags used for the research were made from the
         | polymers nylon-6, polypropylene and cellulose. The study shows
         | that, when brewing tea, polypropylene releases approximately
         | 1.2 billion particles per milliliter, with an average size of
         | 136.7 nanometers; cellulose releases about 135 million
         | particles per milliliter, with an average size of 244
         | nanometers; while nylon-6 releases 8.18 million particles per
         | milliliter, with an average size of 138.4 nanometers.
        
           | nativeit wrote:
           | That's also the materials from each type of tea bag, not a
           | list of materials found in a single bag:
           | 
           | > To such end, three teabags of different chemical
           | compositions were used in this study: (1) empty nylon-6 (NY6)
           | teabags (as a model of polyamide), (2) empty polypropylene
           | (PP) teabags, and (3) commercially available teabags
           | containing tea, and cellulose as the polymer composition.
        
             | odyssey7 wrote:
             | Yes, to the rebuttal of: "do practitioners not distinguish
             | between naturally-occurring polymers and synthetic plastics
             | in this kind of microplastic/nanoplastic research"
             | 
             | The quote you provided explains clearly, they measured
             | three different types of teabags, distinguished by the
             | different material that each was made of. "three teabags of
             | different chemical compositions"
             | 
             | Edit: to indicate agreement
        
       | malfist wrote:
       | At this point the question might be, what doesn't release micro
       | plastics.
       | 
       | I don't use tea bags, all my tea is loose leaf, but I'm sure it's
       | still got micro plastics somewhere in it
        
         | seniortaco wrote:
         | Watch out who you shake hands with, you might absorb micro
         | plastics from them if they use a lot of Tupperware.
        
         | mrspuratic wrote:
         | If you home-compost you get used to finding tea bag skeletons
         | in the compost. For years I used to rip open the used tea bag,
         | compost the tea and discard the bag.
         | 
         | In the last few years the largest two brands here (Ireland:
         | Lyons and Barrys) have gone somewhere between "plastic free"
         | and "biodegradable" (but not home-compostable). 95% of tea is
         | sold in the form of tea bags here.
         | https://livinglightlyinireland.com/2021/02/12/plastic-free-t...
         | (article is from 2021, I think the title is suffering from a
         | Wordpress date placholder)
        
           | selimthegrim wrote:
           | Thanks for this; have been buying Barry's lately in US
        
           | kjkjadksj wrote:
           | I throw the whole teabag, rope and all, into the compost and
           | the mealworms make it into incomprehensible brown slush along
           | with the rest of the pile in a few days. It's always way more
           | productive using insects in the compost.
        
       | api wrote:
       | This is probably the lead of the 21st century, something all over
       | that we have kind of known is bad but haven't paid attention to.
       | Add endocrine disruptors along with microplastics since the
       | origin is similar.
       | 
       | In 50 years there will probably be a lot less plastic used in
       | contact with food, and what is used will be formulated
       | differently. It will be similar to the gradual removal of lead
       | from everything.
        
         | toss1 wrote:
         | Yup. Seems like a great idea at the time, until it is both such
         | a great idea that it becomes ubiquitous and we start looking at
         | it more closely.
         | 
         | Kind of a proverbial 'boiling the frog' problem. A little bit
         | of handling lead pipes or pumping leaded gasoline or inhaling
         | or ingesting microplastics won't do anything. But when modern
         | life gets so we're all bathing in the stuff all the time, the
         | big problems are revealed.
        
         | jjtheblunt wrote:
         | Maybe in the "western world", but look up asbestos use and
         | mining and export in brazil, china, russia and you may be
         | horrified.
        
         | gen220 wrote:
         | Yeah and similar to lead (and asbestos as someone else
         | mentioned), once you see it you can't really un-see it.
         | 
         | The idea of re-heating food by microwave in a plastic storage
         | container, or purchasing anything acidic or liquid from the
         | grocery store that's stored in a plastic or plastic-lined
         | container elicits a similar feeling in my brain to sleeping
         | under popcorn ceilings or drinking water from a house with lead
         | pipe plumbing.
         | 
         | Yet, in the U.S. at leaste, people have been doing this
         | literally for decades without thinking twice :/
        
         | ahartmetz wrote:
         | So we know that microplastics are everywhere. The thing that
         | doesn't really seem clear yet is whether microplastics are
         | actually harmful. Polyethylene, for example, seems quite
         | harmless. (There are also generally harmless substances that
         | become harmful in the right shape, e.g. quartz as fine dust or
         | fibers)
        
       | nikolayasdf123 wrote:
       | other big overlooked area -- paper cups are covered inside with
       | hydrophobic film that is made of plastic, and given extra hot
       | water makes plasticisers get off substance, chances are all those
       | paper cups are releasing lots of microplastics into hot water.
       | ask for mugs folks.
        
         | saas_sam wrote:
         | Just make sure the mugs weren't washed with Jet Dry...
         | 
         | Avoiding toxic and questionable substances really does get
         | exhausting after awhile. It's everywhere. I'm able to draw a
         | reasonable line (for me) without getting too nuts about it.
         | Hoping AI ends up helping with this.
        
           | gosub100 wrote:
           | what would AI do that human intelligence couldn't? Is it not
           | a linear cause-and-effect relationship? more plastics cause
           | more illness? (yes | no). If plastics are toxic, wouldn't we
           | see for ourselves (thus NOT requiring AI) a proportionate
           | increase in sickness in samples (people or animals) with
           | higher plastic in their bodies? Why is the message more
           | profound if AI tells you versus a human team of college
           | researchers?
        
             | relaxing wrote:
             | > If plastics are toxic, wouldn't we see for ourselves
             | (thus NOT requiring AI) a proportionate increase in
             | sickness in samples (people or animals) with higher plastic
             | in their bodies?
             | 
             | Yeah man I notice microplastics in tissue samples from my
             | sick friends all the time. Haven't you?
        
         | DoneWithAllThat wrote:
         | "Chances are" is not science, it's just obsessing over the
         | current Scary Thing. You're just making things up.
        
           | nikolayasdf123 wrote:
           | https://www.sciencedirect.com/science/article/abs/pii/S03043.
           | ..
           | 
           | > Several studies in the past have shown that harmful
           | chemicals and substances can leach from paper and paperboard-
           | based food packaging into the food meant for human
           | consumption (Choi et al., 2002, Hansen et al., 2013, Schaider
           | et al., 2017, Trier et al., 2011, Trier et al., 2018, Deshwal
           | et al., 2019, Vandermarken et al., 2019).
           | 
           | https://youtu.be/i5611OvTFGM?feature=shared&t=5289
           | 
           | > "BPA, phthalates, plasticisers etc. are not chemically
           | bound to substance they added too, and under heat they come
           | out [...] you don't want to mix these with your food, but the
           | worst thing to do is to put it in the heated environment" --
           | Dr. Shanna Swan, Ph.D
        
           | HPsquared wrote:
           | Your own comment is also not science. Scientific results
           | (particular testing conditions and results) need to be
           | interpreted and actions decided on in the real world. Policy
           | is not science either.
        
         | double0jimb0 wrote:
         | Or are they coated with wax/parafin?
        
           | JKCalhoun wrote:
           | I remember encountering those -- meant for cold beverages.
           | When you hit them with hot water a kind of wax film floats to
           | the top.
        
           | pavon wrote:
           | Growing up, paper cups were all coated in wax, but I can't
           | remember the last time I'd seen one coated in wax in the US,
           | it's been at least a decade. Back then I remember being
           | cautioned against using paper cups for hot drinks as it would
           | melt the parafin (which wasn't great to drink) and then the
           | paper would get soggy. Hot drinks to go were mostly served in
           | styrofoam back then, while they are mostly plastic coated
           | paper now. So that was probably a small step forward,
           | although reusable ceramic or metal is better than either.
        
         | julianeon wrote:
         | The alternative for me isn't to ask for a mug, it's an argument
         | for skipping all that and making it at home.
        
           | JKCalhoun wrote:
           | Yeah, coffee served in a paper cup even tastes like jank.
           | When I can make coffee at home that is better than the cafes
           | -- why drink out?
        
       | oidar wrote:
       | this is from the same journal with the black plastic cooking
       | utensils that has been remove from a major index.
       | https://arstechnica.com/health/2024/12/journal-that-publishe...
        
         | rc_mob wrote:
         | Science loves proving science wrong. I'm glad science overcame
         | science on the issue of blqck plastic
        
       | NooneAtAll3 wrote:
       | fascinating how one piece of bad journalism disqualifies whole
       | research - we already have 2 comments (and I was about to post
       | the 3rd) here about "why cellulose is in the list of
       | microplastics?"
       | 
       | in my case I opened the news story with a question "what
       | microplastics even are there in a paper bag??", then saw the
       | sentence "The tea bags used for the research were made from the
       | polymers nylon-6, polypropylene and cellulose."
        
       | crazygringo wrote:
       | I find it impossible to put this into any kind of meaningful
       | context.
       | 
       | First of all, what's with the focus on tea bags? How does that
       | compare with microplastics entering our food and drink from the
       | plastic-lined paper cups we drink hot tea and coffee out of, from
       | the cling wrap that covers our food as we heat it in the
       | microwave, from the Tupperware and other plastic containers we
       | heat our food up in, from the bottled water that sits inside
       | plastic for months, from all of the plastic bowls and utensils we
       | use in our kitchens, from the disposable serrated plastic knife
       | we might use at an event to cut our chicken, and so forth? Why
       | _tea bags_?
       | 
       | Second, how do "microplastics" compare to micro-everything else?
       | Surely if you brew tea in a wooden container, "microwood"
       | particles are entering the drink. Surely when you scrape your
       | stainless steel spatula against your stainless steel skillet
       | making scrambled eggs, "microsteel" particles are embedded in
       | your eggs. How does the body deal with micro- _everything_? Is
       | there any reason to think plastic is more harmful? Is there any
       | specific supposed health consequence, like a specific type of
       | cancer or increased aging or something?
        
         | bowmessage wrote:
         | I don't do _anything_ in that list you just mentioned, and I
         | will probably stop drinking tea from a bag now. This is helpful
         | research.
        
           | 0-_-0 wrote:
           | Where do you find plastic tea bags? I don't think I've ever
           | seen one.
        
             | TeaBrain wrote:
             | Mesh tea bags, like are used at Starbucks, are plastic.
        
             | bluejekyll wrote:
             | "The tea bags used for the research were made from the
             | polymers nylon-6, polypropylene and cellulose."
             | 
             | They aren't pure plastic.
        
             | gaoshan wrote:
             | Most tea bags that you purchase anywhere use some level of
             | plastics in their component materials and/or binding
             | (especially this latter). The only safe options are metal
             | strainers that you filter the tea with (and that hopefully
             | don't have coatings on them that are harmful... boiling a
             | new one would not be a bad idea before first use) or just
             | loose leaf.
        
             | Suppafly wrote:
             | bourgie brands of tea come in little nylon pyramids instead
             | of the normal paper/cloth bag.
        
           | bagels wrote:
           | How do you cook food?
        
             | stevenwoo wrote:
             | It's not hard to cut out the exposure listed in the comment
             | with a little effort and time, except for the steel thing
             | which is a bit over the top.
        
               | woleium wrote:
               | it's actually needed, see lucky fish:
               | https://en.m.wikipedia.org/wiki/Lucky_iron_fish
        
               | selimthegrim wrote:
               | Debatable efficacy.
        
             | marliechiller wrote:
             | Cast iron pots and pans
        
               | bagels wrote:
               | Not concerned about the chromium and vanadium present in
               | most cast iron?
        
               | fhackenberger wrote:
               | I'm not deeply into that topic, but the pan I use that's
               | made of iron was 'burned-in' using linseed oil several
               | times to create a non-sticky surface. Whatever that has
               | as negative side-effects aside, that layer might trap the
               | iron additives quite effectively.
        
             | bowmessage wrote:
             | Also, glass Pyrex Tupperware.
        
             | __MatrixMan__ wrote:
             | Steel and glass
        
           | brookst wrote:
           | But is it? How confident are you that this is your greatest
           | exposure? Odds are there is something else in your life at
           | least 100x as bad. And what does it mean that cellulose, a
           | naturally occurring compound, releases 15x more microplastics
           | than nylon? Or does iy? This study didn't measure
           | nanoplastics.
           | 
           | That's what a lack of context does. No harm in just avoiding
           | anything any study has found to be potentially harmful
           | (especially tea bags, which are a crime against good tea and
           | easily replaced). But... it's impossible to know if this is
           | the equivalent of stopping smoking, or of brushing teeth
           | three times a day instead of two.
        
             | JKCalhoun wrote:
             | I think we're simply responding to the list the OP gave --
             | which many of us do not do.
        
             | woleium wrote:
             | how do we find the 100x as bad thing if we do not do
             | research like this. The authors did not write this to
             | provide you with a guide for life, they are instead trying
             | to increase our collective knowledge. I wonder sometimes if
             | folks understand how science works.
        
               | Suppafly wrote:
               | >they are instead trying to increase our collective
               | knowledge
               | 
               | I'm not sure that's even clear since they seem to be
               | conflating cellulose with microplastics.
        
             | rc_mob wrote:
             | Have to start somewhere with avoiding plastics. This is as
             | good a place to start as any other.
        
           | Vegenoid wrote:
           | You never have food or drink that was stored or served via
           | plastic containers? How? I ask seriously - how do you live
           | your life to entirely avoid this, while also not living a
           | life so separate from society that you are drinking tea made
           | from tea bags?
        
             | bowmessage wrote:
             | I never eat or drink anything heated in plastic when I can
             | control it. Sure it may have been stored in plastic at some
             | point, but not heated.
        
               | Suppafly wrote:
               | >I never eat or drink anything heated in plastic when I
               | can control it.
               | 
               | Do you avoid restaurants and cafeterias completely?
        
             | dylan604 wrote:
             | Many people drink tea not from tea bags to the point that
             | "many" isn't really descriptive enough. If you're a tea
             | aficionado, you definitely don't. Which means there's an
             | entire market of people doing things like an aficionado
             | even if they are not; see audiophiles. Only mass market
             | large brands push the tea bag. Good tea comes packaged as
             | loose leaf meant to be used in whatever strainer you have.
        
           | __MatrixMan__ wrote:
           | Lose leaf tea is much better anyway. You can get multiple
           | infusions out of it which is nice if you don't need the
           | caffeine the second time around (it's quite water soluble and
           | mostly all goes in the first infusion).
           | 
           | A second infusion with bags always just ends up kinda watery
           | and sad. Something about the leaves being smaller...
        
             | acjohnson55 wrote:
             | Yep. I used to regularly drink high-grade ti guan yin
             | (a.k.a. iron goddess), and I could often get 8 steeps and
             | still have plenty of flavor.
             | 
             | The trick was to use a lot of tea and steep it for only 30
             | seconds. One of the advantages was how quick it was to get
             | my next cup.
        
               | skirmish wrote:
               | Look up "gongfu steeping", it is a well established
               | method, e.g. "15 to 30 seconds for the first infusion,
               | then add 10 seconds to each subsequent infusion. If it
               | seems a bit weak, leave it for longer."
        
           | nycdatasci wrote:
           | In the study, they put 300 nylon/plastic bags into 1L of
           | near-boiling water. Many bags are paper derivatives and not
           | plastic. No need to completely stop enjoying tea.
        
         | vasco wrote:
         | I mean, why not? I get your point but before wide encompassing
         | studies and meta studies, a lot of things will be looked at
         | because we can look at them. It's like asking why investigate
         | dolphin language instead of all animal communication.
        
         | righthand wrote:
         | If you microwave your consumables in plastic that is on you.
         | Microwavable plastic is a marketing myth. Put your food on a
         | plate or bowl and cover it with a wet paper towel.
        
           | dboreham wrote:
           | Isn't the wet paper towel and EM reflector? I use wax paper
           | fwiw.
        
             | almostnormal wrote:
             | I use a second plate, upside down.
        
             | righthand wrote:
             | It would reflect under the paper towel too then, therefor
             | serving it's purpose.
        
           | hindsightbias wrote:
           | What makes you think there isn't BPA in your paper towels?
           | 
           | https://pubmed.ncbi.nlm.nih.gov/21939283/
        
             | righthand wrote:
             | Because I was skeptical of paper towels too and only buy
             | ones without.
             | 
             | It is also noteworthy that the paper towel doesn't soak in
             | the consumable when reheating like a tea bag does.
        
           | imglorp wrote:
           | We have a set of reusable silicone lids. They can withstand
           | high temperature on stove or microwave and just rinse off.
           | Hopefully they aren't found to release anything.
           | 
           | Instead of a paper towel, we throw food on a plate or bowl
           | and drop a lid on it. This also works in the fridge; one less
           | thing to wash and nothing disposed.
        
             | righthand wrote:
             | You may be interested in Weck jars too that are made of
             | glass for storage and are very affordable. They have glass
             | lids.
        
               | bityard wrote:
               | I'm sure they are good, but you and I have quite
               | different levels of "very affordable." On Amazon, they
               | seem to average around $10 each depending on size.
               | Contrast with mason jars at a little more than $1 each at
               | my local Menards plus a bit more for reusable lids or
               | silicone gaskets.
        
           | burkaman wrote:
           | It is absolutely not on you. In order to function as an adult
           | you need to be able to have some level of trust in your
           | family, your society, and your government (depending on where
           | you live, I guess). That doesn't mean blindly believing
           | everything you hear, but it does mean not having to do novel
           | scientific research to confirm everything you were ever
           | taught.
           | 
           | The majority of people alive on Earth today grew up in a
           | world where plastic packaging and containers were a common,
           | completely accepted part of life. Research suggesting this is
           | harmful is very new, and still not settled. You cannot blame
           | anyone for not picking this random ubiquitous aspect of
           | modern life and avoiding it because it might be bad for them.
           | Home microwaves themselves are no older than home plastics -
           | why do you trust them?
        
             | righthand wrote:
             | They also grew up in a world that was skeptical of plastics
             | and chose to ignore the skepticism because not being
             | skeptical and blindly trusting your family, society,
             | government is a fools errand. The exact issue is people
             | promoting this "well I shouldn't have to think/research"
             | way of life. That's just nonsense and the reason we're
             | here. It's a cute dream but ignorance will just kill you.
        
               | burkaman wrote:
               | I am open to being convinced otherwise, but I don't agree
               | that there was any widespread skepticism of the health
               | impacts of plastic until very recently, maybe the last 5
               | years. There has certainly been broad concern about
               | plastic trash and environmental pollution for a long
               | time, but that's a different topic.
               | 
               | I stand by my claim that you and I should not have to
               | research the health impacts of, for example, microwaves.
               | We should have to think about it, but if you have a basic
               | understanding of how they work and how to use them
               | safely, and you listen to people who might tell you if
               | there were an issue (friends, the news, the FDA, etc.),
               | then that is enough. And when I say "how to use them
               | safely", I don't mean doing your own experimentation to
               | find the limits of the device. I mean being told not to
               | put metal in it, maybe watching a video to see what
               | happens if you do, and accepting that it's a bad idea and
               | you won't do it. It is not possible for me to do a
               | medical study on the impacts of eating microwaved food,
               | but I have enough societal trust that I continue to use
               | them anyway.
        
               | righthand wrote:
               | Plastic is made from oil, you'd have to be pretty
               | ignorant to believe people never were skeptical of
               | plastics and that skepticism wasn't covered up by
               | lobbying.
        
               | burkaman wrote:
               | Yes of course, and lobbyists can be very effective. They
               | covered up climate change and the harms of smoking too.
               | I'm sure there are things that (almost) nobody knows
               | today because of corporate cover-ups that we'll discover
               | in 10 years. Climate change didn't enter the public
               | consciousness until the late 80s, decades after the basic
               | science was well-established, and it took more decades
               | for it to become something that "everyone" knew about.
               | That's the fault of corporations and lobbyists, not
               | individuals that were too lazy to do their own climate
               | modeling.
               | 
               | It is obvious to me that smoking is bad for you, it feels
               | like an intuitive fact that nobody should have to be
               | taught, but that's because I grew up in a culture
               | absolutely saturated with that idea, and I didn't know
               | anyone that smoked. Somebody who grew up 70 years ago in
               | the complete opposite culture can't be blamed for not
               | knowing at the time that smoking causes lung cancer. How
               | could they know? Nobody can follow cutting-edge research
               | from every field on the planet and adjust their life
               | accordingly. Even if you could it wouldn't help - cutting
               | edge science is often contradictory and it takes time for
               | a consensus and convincing body of evidence to build up.
               | I'm sure both of us hold intuitively obvious beliefs that
               | we'll realize are wrong in 20 years.
               | 
               | What is the solution? It's not helpful to wait until
               | after a coverup is exposed and then blame every
               | individual who didn't somehow figure it out on their own.
               | You also can't just believe the opposite of everything
               | you've ever been told - you'll have the same problem.
               | Some things that corporations produce are actually good
               | for you, lobbyists are occasionally paid to promote
               | something useful and true. Your parents were probably
               | right about a lot of stuff they taught you. You can and
               | should ask questions and learn as much as you can, but
               | life is complicated, nobody can be deeply educated about
               | every single thing they touch.
        
               | c0redump wrote:
               | I guess it depends on what segment of society you exist
               | in. I (born in the early 90s) was raised in a plastic-
               | free lifestyle, and many of the people my family
               | associates with are the same. We are staunch
               | environmentalists though, so I guess my experience is not
               | typical. So, I don't know about "widespread", but the
               | current of thought has been present in the zeitgeist for
               | decades.
        
               | burkaman wrote:
               | Was that about health concerns, or pollution and
               | environmental concerns? Obviously health and the
               | environment are very related, but what I mean is that
               | even the term "microplastic" didn't exist when you were
               | born, and I thought the idea that consumption of or close
               | contact with plastic could cause individual health
               | problems was relatively new. Not that literally nobody
               | had thought of it, but my impression is that pushback
               | against plastic for most of its history was driven by
               | giant piles of trash that don't biodegrade, turtles
               | getting stuck in soda packaging, stuff like that.
        
               | jajko wrote:
               | No I didnt and I dont know anybody who did. Unless you
               | count proper nutjobs seeing conspiracies everywhere and
               | world controlled by nanochips etc.
        
               | righthand wrote:
               | Yes you bought right into it. New thing? It must be fine!
               | Framing skeptics as nutjobs is exactly what caused the
               | ignorance.
        
               | ssl-3 wrote:
               | A broken clock can be right twice per day, but that
               | doesn't mean that it is ever useful.
        
             | adrian_b wrote:
             | It is likely that most people do not pay much attention to
             | whatever chemistry they learn in school, but at least I
             | would have never trusted any plastic object to be in
             | contact with food inside a microwave oven, even decades
             | ago, when I was much less careful about contact between
             | plastic and food at room temperature.
             | 
             | There has never been any reason to not trust microwaves
             | themselves with food, because any undesirable effects
             | caused by them cannot be worse than when heating food is
             | done using traditional methods, at temperatures that are
             | normally higher and much less controlled.
             | 
             | On the other hand, anyone who has some idea about the
             | components of any usual plastic can see that it is
             | practically certain that at temperatures not much above
             | room temperature some of the garbage fillers included in
             | any plastic besides the base polymer will degrade and leak.
             | 
             | There may be a few plastics that could really resist in a
             | microwave oven without degradation, e.g. PEEK, but those
             | are very expensive and they will never be used for a cheap
             | article like a food container.
             | 
             | Already since a few decades ago, since I have first used a
             | microwave oven, I have never used anything else but glass
             | vessels covered with glass lids and I have always been
             | astonished whenever I have seen or heard somewhere that
             | there exist people who have the courage to put food in
             | microwave oven in plastic containers, even if their vendor
             | has the guts to say that this should be safe.
             | 
             | There is really no excuse for using plastic for heating
             | food, as the only supposed advantage is being able to dump
             | the plastic container without washing it, but the glass
             | vessels used for heating food in a microwave oven are very
             | easy to wash, much easier than washing vessels that have
             | been used for traditional cooking or food heating.
        
               | burkaman wrote:
               | What did you learn in high school chemistry that made you
               | suspicious of plastic? I did pay attention and I don't
               | think I remember us covering plastic at all.
               | 
               | > On the other hand, anyone who has some idea about the
               | components of any usual plastic can see that it is
               | practically certain that at temperatures not much above
               | room temperature some of the garbage fillers included in
               | any plastic besides the base polymer will degrade and
               | leak.
               | 
               | How do you know this? Even as someone actively looking
               | into this topic I'm not sure whether this is true. I'm
               | not challenging you, I'm genuinely asking where to learn
               | about this.
        
               | icanhelp wrote:
               | > 'How do you know this? Even as someone actively looking
               | into this topic I'm not sure whether this is true. I'm
               | not challenging you, I'm genuinely asking where to learn
               | about this.'
               | 
               | It's called "having common fucking sense." Try it some
               | time.
        
         | sharpshadow wrote:
         | One should avoid all the things which you mentioned and using a
         | microwave at all.
         | 
         | The context is a comparison between good old paper tea bags.
        
           | yreg wrote:
           | > using a microwave at all
           | 
           | Why?
        
           | hindsightbias wrote:
           | > good old paper
           | 
           | https://pubmed.ncbi.nlm.nih.gov/21939283/
        
             | sharpshadow wrote:
             | This study does not specifically mention paper tee bags. It
             | mentions food contact paper but that's something different.
             | 
             | In Germany paper tea bags are made out of natural fiber
             | without glue.
             | 
             | But I would really like to know if this paper tea bags also
             | release hefty amounts of microplastics, if somebody has a
             | study please link. That those plastic tea bags are
             | microplastic hell should have been obvious from the start.
             | The first time I saw them until forever I will avoid them.
        
         | mandmandam wrote:
         | These are all questions that are pretty easy to answer these
         | days; perfectly appropriate for asking to an LLM or search
         | engine.
         | 
         | Long story shot - yes, this is a major problem. Yes, you're
         | getting it from bottled water and plastic utensils and plastic
         | lined cups. No, it's not like microwood.
         | 
         | This shit is being found in every organ of our bodies from our
         | sex organs to our brains. It's found in most wild animal
         | samples, it's found in rain, it's found on Everest's peak and
         | in the Mariana Trench. And every indication is that it's
         | getting rapidly worse, scaling up with our ever-increasing
         | plastic production.
         | 
         | And there are perfectly good alternatives for the vast majority
         | of this use, but the costs are a bit higher (since they're not
         | being externalized onto the planet and our organs as much).
        
         | protonbob wrote:
         | We do know that microplastics may be reducing male fertility. I
         | know there are others but I haven't done a ton of research [1].
         | Wood and stainless steel are different because we have evolved
         | with these materials in our surroundings or at least something
         | close to them. Also, wood, and even metals, do not have the
         | staying power of plastic. We already do know that heavy metals
         | are bad if they stick around in your body, but we do need
         | metals in our diets as nutrients as well.
         | 
         | It should be assumed that anything that we have invented in the
         | last 200 years should be guilty until proven innocent at this
         | point imo. So many of the "modern marvels" have shown to have
         | horrible health effects.
         | 
         | [1] https://pmc.ncbi.nlm.nih.gov/articles/PMC9134445/
        
           | woleium wrote:
           | The dangers of sawdust (micro wood?) vary from species of
           | tree to tree, but are generally well known and studied. in
           | particular Manchineel and Yew are known to be dangerous.
           | 
           | Wood in its natural state is not a safe substance. African
           | Mahogany for example is highly toxic, causing dermatitis,
           | respiratory issues, giddiness, vomiting, boils, asthma,
           | headaches, and nosebleeds. Has also been linked to nasal
           | cancer.
           | 
           | https://www.mountainwoodworker.com/articles/toxic_woods.pdf
        
             | scns wrote:
             | Wenge and Oak too.
        
           | dylan604 wrote:
           | > We do know that microplastics may be reducing male
           | fertility.
           | 
           | If we "know" something, would we still be using the word
           | "may"? Know seems pretty strong for such a wishywashy result
           | of "may".
           | 
           | There's definitely research in fertility rates lowering.
           | Phtalates are receiving a lot of attention as well as an
           | example.
        
             | protonbob wrote:
             | I didn't say that we know that they are reducing male
             | fertility, we know that it's very possible. I could have
             | said it probably does. But I'm not a scientist so I'm not
             | going to.
        
               | dylan604 wrote:
               | We know it's very possible is a very wishywashy comment
               | though.
               | 
               | Best I can say is that there are theories, but we don't
               | know if they are true or not yet. Some people _think_
               | they are, some people disagree. That 's why they are not
               | facts.
        
               | pfdietz wrote:
               | It means "we haven't ruled it out yet". And given the
               | difficulty of conclusively demonstrating a negative,
               | that's a very weak claim.
        
         | lukeschlather wrote:
         | "Microwood" is basically just cellulose, aka insoluble fiber,
         | which naturally exists in our food. "Microsteel" is just
         | elemental iron which is a necessary nutrient.
         | 
         | Microplastics are novel hydrocarbons that don't exist in
         | nature. They're similar to cellulose but no organisms exist
         | that eat them. They're believed to be nonreactive and therefore
         | harmless but they might bioaccumulate which could be bad, or
         | they might react with things in our bodies in unknown
         | circumstances. We have limited experience with these molecules
         | so it is hard to say.
        
           | Zaskoda wrote:
           | Elegant and pithy answer to a well asked question.
        
           | rcMgD2BwE72F wrote:
           | And plastics are full of endocrine disruptors, which are
           | pretty bad for human health too.
        
           | dbingham wrote:
           | Missing from this answer is the early evidence that they may
           | be _very_ harmful. Early evidence suggests they are not non-
           | reactive. They disrupt many of the body's systems in ways
           | we're only beginning to understand.
           | 
           | > Various examples of damage caused by microplastics have
           | been reported, such as microplastic accumulation in the
           | bodies of marine and aquatic organisms (leading to
           | malnutrition), inflammation, reduced fertility, and
           | mortality. The threats that microplastics present to the
           | human body have not yet been clearly identified. However,
           | previous reports have shown that ultrafine microplastic
           | absorption resulted in complex toxicity in zebrafish,2 and
           | that microplastics under 100 nm in size can reach almost all
           | organs after entering the human body.3 Therefore, concerns
           | exist regarding the negative effects of continuous
           | microplastic accumulation in the human body.
           | 
           | https://pmc.ncbi.nlm.nih.gov/articles/PMC10151227/
           | 
           | > Microplastics have been found in a variety of organisms and
           | multiple parts of the human body. We emphasize the potential
           | impact of microplastics on the early exposure of infants and
           | the early development of embryos. At present, the toxicity
           | research on microplastics show that the exposure will cause
           | intestinal injury, liver infection, flora imbalance, lipid
           | accumulation, and then lead to metabolic disorder. In
           | addition, the microplastic exposure increases the expression
           | of inflammatory factors, inhibits the activity of
           | acetylcholinesterase, reduces the quality of germ cells, and
           | affects embryo development. At last, we speculate that the
           | exposure of microplastics may be related to the formation of
           | various chronic diseases.
           | 
           | https://pubs.acs.org/doi/10.1021/envhealth.3c00052
        
             | brokegrammer wrote:
             | > Almost all the studies on the toxicity of microplastics
             | use experimental models, and the harm to the human body is
             | still unclear.
             | 
             | You missed this part, which is the most important one.
        
               | lowbloodsugar wrote:
               | In what way is it the most important one?
               | 
               | Was the most important part of all the tobacco research
               | the bits that said "Smoking tobacco is healthy"? Or the
               | studies of lead in gasoline the caveats that said "These
               | are small samples"?
        
               | brokegrammer wrote:
               | It removes the possibility of fear mongering. I'm not
               | aware of any modern research where smoking anything is
               | claimed to be healthy, nor anything about lead in
               | gasoline being too insignificant to pose a health risk.
               | 
               | I prefer fact over fear based science.
        
               | aziaziazi wrote:
               | > I prefer fact over fear based science
               | 
               | What is that supposed to mean? Most science is based on
               | theories but you don't wait for the Theory of Everything
               | to take learnings of science. Fear is a very useful
               | emotion and you shouldn't fear it.
        
               | zug_zug wrote:
               | Unclear doesn't mean safe, it just means hard to
               | quantify. Your child could be in a car accident and their
               | survival odds could be unclear, scientifically speaking.
               | Doesn't mean "totally safe."
        
               | brokegrammer wrote:
               | This is the wrong analogy because the article states that
               | there's only theoretical harm. It could mean that one has
               | to drink from 100 tea bags a day to get any adverse
               | effects.
               | 
               | I'd wait for more research before freaking out.
        
               | mjmahone17 wrote:
               | It's reasonable for people to take either approach: are
               | microplastics more like asbestos or are they more like
               | cellulose in terms of harm?
               | 
               | The answer being unclear means it makes sense to treat
               | them, from a regulatory standpoint, closer to asbestos.
               | It also makes sense to treat them as an unknowable and
               | not regulate, because any alternative might be worse.
               | 
               | But it does point to there being a dearth in research and
               | answers, and we should solve that as quickly as possible
               | and maybe limit our exposure when viable, known to be
               | non-toxic alternatives exist.
        
               | Suppafly wrote:
               | >The answer being unclear means it makes sense to treat
               | them, from a regulatory standpoint, closer to asbestos.
               | 
               | I'm not sure the follows logically, it ignores a bunch of
               | known facts about biology to imagine that there is a
               | pathway for these to cause major issues.
        
               | thayne wrote:
               | It doesn't mean unsafe either.
        
               | schmidtleonard wrote:
               | Damage that is bad enough becomes easy to quantify, so
               | no, "unclear" actually does put a bound on it.
               | 
               | Survival odds in car crashes demonstrate this nicely:
               | count the outcomes and divide. If "the survival odds were
               | unclear, scientifically speaking" then car accidents
               | would have to be orders of magnitude more rare and less
               | lethal than they are.
        
               | whatshisface wrote:
               | _Sudden_ damage that is bad enough is easy to quantify.
               | You should take a look at the decades long struggle to
               | prove that cigarettes are harmful to see what it is like
               | when the harm is chronic.
        
               | therealcamino wrote:
               | So...perhaps worthy of further study, maybe including to
               | understand where exposure comes from, and whether the
               | particles are absorbed? Like this study.
        
           | rendaw wrote:
           | Can the body break down cellulose though? It can't digest it
           | at least. And do reactions that could use naturally occurring
           | iron compounds work with steel alloys designed to be non-
           | reactive?
           | 
           | I think something else that doesn't get mentioned is it's not
           | just the risk of microplastics reacting, the physical non-
           | reactive presence of particles can clog and get in the way of
           | natural processes mechanically. So nonreactive shouldn't be
           | taken to imply harmless.
        
             | Suppafly wrote:
             | >the physical non-reactive presence of particles can clog
             | and get in the way of natural processes mechanically
             | 
             | Source?
        
               | rendaw wrote:
               | TBH I can't remember what I was looking up when I first
               | read about that (I feel like it was metals, glass, or
               | cellulose again), but
               | https://www.pnas.org/doi/10.1073/pnas.2104610118 seems
               | pertinent:
               | 
               | > In general, mechanical interactions of microparticles
               | and nanoparticles on biological membranes are vaguely
               | studied, despite their importance for biological systems
               | (29, 41). Hereby, we will demonstrate that these
               | microplastics induce a mechanical stress of model cell
               | membrane without the need of indirect assumptions about
               | biological pathways (26, 27).
        
             | skirmish wrote:
             | > physical non-reactive presence of particles can clog and
             | get in the way of natural processes mechanically
             | 
             | That would mean fiber in food is harmful since it is not
             | digested. Cellulose is just a common type of natural fiber.
             | Meanwhile:
             | 
             | USDA recommends that people consume the following amounts
             | of fiber per day:
             | 
             | -- Women ages 31-50: 25 grams
             | 
             | -- Men ages 31-50: 38 grams
        
           | sillyfluke wrote:
           | The reason for "why microplastics?" is because human use of
           | everyday objects are more plastic than wood or steel. The
           | reason for "why teabags?" is because of previous studies and
           | because I think tea makes it to the top five of the most
           | ingested liquid list.
           | 
           | I seem to recall a recent study of microplastic levels in a
           | general population, where people with higher microplastic
           | levels seemed to be tea drinkers, which took some by surprise
           | at the time. I think the population under study was from
           | latin america, if I'm not mistaken. Since this study now has
           | flooded the search results, I'm having trouble finding that
           | specific study.
           | 
           | Be that as it may, it's likely that there is a focus on tea
           | because tea-drinkers scored high on microplastics in previous
           | studies.
        
           | lkbm wrote:
           | > "Microwood" is basically just cellulose, aka insoluble
           | fiber, which naturally exists in our food.
           | 
           | This is one thing that confused me about the first article I
           | saw on this. The paper lists three things it detected, one
           | being cellulose, and various articles will list them all
           | together as if they're just three microplastics to be worried
           | about.
           | 
           | The paper seems to encourage this reading with this line:
           | "the third one (from the supermarket) being cellulose (CL,
           | sample 3), a bio-based polymer"[0].
           | 
           | Was sample 3 completely fine? If so, why is say "Nanoplastics
           | were obtained from three teabag brands during a standard
           | preparation"? Are they classing cellulose as nanoplastics?
           | 
           | [0] https://www.sciencedirect.com/science/article/pii/S004565
           | 352...
        
           | giantg2 wrote:
           | We _know_ that some plastics mimic hormones (eg estrogens),
           | which can cause problems (eg estrogenic cancers).
        
           | thayne wrote:
           | > "Microsteel" is just elemental iron which is a necessary
           | nutrient.
           | 
           | Steel also contains carbon and if it is stainless steel it
           | also has chromium and probably other metals.
        
             | SoftTalker wrote:
             | The body does need trace amounts of chromium.
        
           | llm_trw wrote:
           | Wasn't asbestos non reactive?
        
           | userbinator wrote:
           | _Microplastics are novel hydrocarbons that don 't exist in
           | nature._
           | 
           | They are short-chain hydrocarbons, which most definitely
           | exist in nature.
           | 
           | https://en.wikipedia.org/wiki/Petroleum_seep
        
         | seabass-labrax wrote:
         | I've no idea why they chose teabags to study - one has to start
         | somewhere, presumably - but I can answer the second question.
         | The distinctive feature of plastics is the synthetic polymers
         | that they contain, which classically feature bonds between
         | oxygen atoms. These are extremely difficult for any organic
         | process to break apart. Wood, however, can even be digested in
         | small quantities, so 'microwood' will just break down into its
         | constituent parts in the human body. The body can cope with
         | metals and indeed has evolved to require a small amount, for
         | instance in hemoglobin.
         | 
         | We aren't fully aware of the implications of microplastics on
         | health, but the main cause for concern is that we have no easy
         | way of getting them out (either naturally or medically) in the
         | event that they are harmful.
        
           | cogman10 wrote:
           | > I've no idea why they chose teabags to study
           | 
           | I think they are a pretty reasonable thing to study. Teabags
           | are porous plastic subjected to high heat. So the question
           | has to be "what happens when these plastic baggies get
           | exposed to high levels of heat? Does that liberate some of
           | the plastic into the drink?"
           | 
           | Particularly worthy because tea is one of the most common
           | beverages consumed.
        
         | jasonlotito wrote:
         | From the study linked in the article: "Overall, our findings
         | contribute to a growing body of evidence on the pervasive
         | nature of plastic pollution and its potential implications for
         | human health. As the usage of plastics in food packaging
         | continues to rise, scientific research and policymaking must
         | address the challenges posed by MNPL contamination to ensure
         | food safety and consumer well-being."
         | 
         | > I find it impossible to put this into any kind of meaningful
         | context.
         | 
         | So? Your inability to find meaningful context in something is
         | not important. Who are you and why should this article or study
         | cater to you? Are you in the business of doing research on this
         | topic? Or are you just an HN commenter?
         | 
         | Your ignorance is not a sign of anything other than you being
         | ignorant, and your inability to do something is just that: lack
         | of skill.
         | 
         | > First of all, what's with the focus on tea bags?
         | 
         | Because you can't just assume. You test. That's science. Just
         | assuming (your suggestion) is anti-science. And something we
         | should NOT base our science off of.
         | 
         | > Second, how do "microplastics" compare to micro-everything
         | else?
         | 
         | That's not what this study is trying to determine. It set out
         | to determine how much microplastics came from tea bags. Why
         | increase the scope. Other people are studying that.
         | 
         | You really don't seem like someone who understands how this
         | works. You don't put the puzzle together all at once, you put
         | it together one piece at a time.
        
           | wyxz wrote:
           | I find it quite ironic how many people on HN have a
           | superiority complex to sites like Reddit, yet suffer the same
           | pitfalls. Not reading the source material and going off of
           | headlines or snippets.
           | 
           | Asking for "context" and "why did they study this" is quite
           | interesting, considering the scientific study whose entire
           | purpose is to introduce this context is directly linked
           | within the article.
        
           | therealcamino wrote:
           | Exactly. This is a study about the exposure and absorption
           | parts of the equation. The science is ongoing. People who
           | can't deal with anything less than total certainty don't
           | understand the process.
        
         | JKCalhoun wrote:
         | > How does that compare with ... plastic-lined paper cups ..
         | cling wrap that covers our food as we heat ... the Tupperware
         | and other plastic containers we heat our food up in ... bottled
         | water that sits inside plastic for months ... plastic bowls and
         | utensils we use in our kitchens ... disposable serrated plastic
         | knife...
         | 
         | For myself, I don't do any of the above (with the possible
         | exception of the last one once in a while). I thought everyone
         | knew those were a bad idea.
         | 
         | I do drink tea using tea bags though -- and had no reason to
         | believe there was plastic involved.
        
           | xattt wrote:
           | This discussion is complicated by the loose (ha!) definition
           | of tea bags. There's about a million different tea bags. Some
           | use denser paper, some are thin. Some are stapled, some are
           | pressed. Some are stringed and some are not. Some are single-
           | use cotton (which I learned about when a local tea brand
           | stopped using them due to cost).
           | 
           | Lipton makes a premium brand that uses a tetrahedral shaped
           | micro-perforated plastic bag that very much could be shedding
           | microplastics.
           | 
           | It's hard to have a discussion without a clear definition and
           | terminology.
        
             | therealcamino wrote:
             | The paper describes the three kinds of tea bags tested, and
             | how the results differ between them.
        
           | cogman10 wrote:
           | Just FYI, you can buy stainless steel loose leaf tea
           | infusers. They don't cost a lot ($6->$15) and loose leaf tea
           | is shockingly cheap. Just get a nice airtight container and
           | some moister absorbing packets and you'll have great tea for
           | a while.
           | 
           | I bought like 1lbs ~2 years ago for about $20 and still
           | haven't worked all the way through it :D.
        
             | prophesi wrote:
             | I will also say that loose leaf is an order of magnitude
             | better tasting than bagged tea. The crush-tear-curl process
             | of bagged tea will elicit a bitter brew from anything that
             | isn't black tea, and lose a lot of its flavor. Not to
             | mention they're likely using the leftover chaff from loose
             | leaf production.
             | 
             | I like to show friends a properly brewed Dragonwell green
             | tea and a bug-bitten oolong to convert them to the loose
             | leaf way.
        
               | cogman10 wrote:
               | If you've not already gotten it, this is the next
               | purchase I'd recommend [1]. Nothing better than instant
               | hot water at the right temp :D. Doesn't take hardly any
               | power to run either.
               | 
               | [1] https://www.zojirushi.com/app/product/cvjac
        
               | Suppafly wrote:
               | now you'll probably get some sort of micro-something
               | coming from the non-stick coating inside that thing.
        
               | cogman10 wrote:
               | The inside is silicon. Plumbing might be plastic, hard to
               | tell.
        
           | semiquaver wrote:
           | > and had no reason to believe there was plastic involved
           | 
           | This is about certain tea bags which are recognizably
           | plastic, e.g. the ones pictured in
           | https://scitechdaily.com/warning-plastic-teabags-release-
           | mic...
        
             | namuol wrote:
             | The research specifically deals with cellulose bags which
             | are often sealed with glues containing synthetic polymers.
             | 
             | The picture from the study of the cellulose bags show a
             | round "pillow" style bag which is likely sealed with a
             | glue, unlike some cellulose bags which are folded and
             | stapled:
             | 
             | https://ars.els-
             | cdn.com/content/image/1-s2.0-S00456535240263...
             | 
             | From the article that summarized the study:
             | 
             | > The tea bags used for the research were made from the
             | polymers nylon-6, polypropylene and cellulose. The study
             | shows that, when brewing tea, polypropylene releases
             | approximately 1.2 billion particles per milliliter, with an
             | average size of 136.7 nanometers; cellulose releases about
             | 135 million particles per milliliter, with an average size
             | of 244 nanometers; while nylon-6 releases 8.18 million
             | particles per milliliter, with an average size of 138.4
             | nanometers.
             | 
             | So while polypropylene is the worst of the three by an
             | order of magnitude, the cellulose pillow-style bag still
             | leaches a large number of particles.
             | 
             | Here's the study: https://www.sciencedirect.com/science/art
             | icle/pii/S004565352...
             | 
             | Notably, the authors tested OEM empty teabags for
             | polypropylene and nylon, but chose a supermarket brand of
             | cellulose pillow-style bags with tea still inside.
        
           | phatfish wrote:
           | Most teabags I use now don't split (some imported brands you
           | have to be careful with), these are just regular looking ones
           | not the fine mesh ones used by premium brands. I can jam them
           | against the side of the cup to squeeze out liquid before
           | removing the bag and they almost never split.
           | 
           | I'd say these extra strong bags have become common in the
           | last 15 years in the UK. How they are strengthened I'm not
           | sure, but my parents compost most of their food waste and
           | they reckon worms now push teabags to the top of the compost
           | bin, when previously they would just disappear with
           | everything else and never be seen again.
        
             | BillTthree wrote:
             | LOL. Worms come up to eat food, go down and poop. Poop
             | forces remaining food and wormpoop (compost) up to the top.
             | 
             | They aren't pushing the teabags to the top, they're digging
             | to defecate.
        
           | stevenwoo wrote:
           | There was a different study earlier this year on hacker news
           | about the storage items - cling wrap and plastic containers,
           | those materials all leach into food at different rates
           | depending upon the temperature, acidity of food, and length
           | of exposure contact - hotter and more acidic and longer means
           | more leaching. It's non-zero but the danger level is anyone's
           | guess at this point.
        
         | __MatrixMan__ wrote:
         | I think it's pretty reasonable to expect a bag made of a fine
         | mesh of plastic to yield more tiny broken off pieces than
         | something like plastic container.
         | 
         | Also once you put your mind to it it's actually pretty easy to
         | avoid most of the things you mentioned. There are glass or
         | metal alternatives to pretty much everything plastic. Maybe not
         | for creating an airtight seal over something like leftovers,
         | but I think it's reasonable to expect that the food can sit in
         | glass and have a plastic roof and still be relatively free of
         | microplastics.
         | 
         | More research is needed it seems pretty plausible that
         | plastics, like asbestos, are only a hazard when friable.
        
           | crazygringo wrote:
           | > _I think it 's pretty reasonable to expect a bag made of a
           | fine mesh of plastic to yield more tiny broken off pieces
           | than something like plastic container._
           | 
           | Is it? The mesh bag goes through basically zero abrasion at
           | less than 100degC. It just sits there in the mostly still
           | water.
           | 
           | Meanwhile, the plastic container might be in contact with
           | fatty food way over 100degC. It gets scraped by pointy
           | utensils. It gets abraded by a cleaning pad. It gets
           | scratched and cloudy. It gets used hundreds of times.
           | 
           | I'd be guessing the plastic container sheds orders of
           | magnitude more microplastics.
        
             | __MatrixMan__ wrote:
             | I'd be interested in seeing this measured. Probably it
             | depends on how much abuse the plastic container receives. I
             | don't think mine ever come in contact with something >
             | 50degC, and the dish scraper I use isn't very pointy, but
             | ymmv.
             | 
             | The reason I'm sticking with the tea-bag as the greater
             | contributor is that I expect that the likelihood of a given
             | region of plastic detaching and being washed into
             | food/drink is related to:
             | 
             | - how closely the overall piece resembles a sphere and how
             | large that sphere is (e.g. whiskers are likely to be
             | knocked off, whereas the center of a sphere is unlikely to
             | be dug out
             | 
             | - whether it has ever gone through this kind of treatment
             | before
             | 
             | Sort of like how when eating a donut covered in powered
             | sugar 95% of the mess happens within the first second of
             | handling it.
        
         | glenstein wrote:
         | I absolutely agree that meaningful context would be helpful,
         | but I don't see that as disqualifying. I appreciate that
         | research is opportunistic, as often oriented toward discovery
         | of new things not yet understood, as much about building up our
         | factual understanding as interpretation.
         | 
         | So sure, I want context, but I think this kind of exasperation
         | is a bit misplaced, as I don't think the article or the
         | research itself was intended to be a comprehensive account of
         | the broader contexts you are looking for. If it was
         | masquerading as such a thing, I would be in full agreement. So
         | I think it's a fair point in general, but the way you are
         | saying it here sounds an awful lot like you're holding up a
         | stop sign and saying "don't do any more research!"
        
         | 14 wrote:
         | If one had to study the entirety of a subject it would be
         | impossible to do so in many cases. It is entirely reasonable
         | for a researcher to pick one piece of the puzzle and study
         | that. No it does not give the entire picture but it may help us
         | understand the greater picture.
         | 
         | Lastly if this was anywhere else besides HN there is a
         | microwood entering you joke to be made.
        
         | wyxz wrote:
         | > First of all, what's with the focus on tea bags?
         | 
         | Well, lucky for you, there's an _entire scientific study_
         | detailing why they chose to study it and the methodologies they
         | used. You know, the one linked in the article. It states:
         | 
         | > Among the different food containers releasing MNPLs, teabags
         | stand out. Recent investigations have elucidated that teabags
         | significantly contribute to the release of millions of MNPLs,
         | adding to their daily ingestion by humans.
         | 
         | And this is just a snippet! Much more detail and context
         | available within! The wonders of original sources.
        
         | JoeAltmaier wrote:
         | There is no evidence of harm. Your body continually rids itself
         | of them. This is a lot of passion and angst over what may be
         | nothing.
        
         | lkbm wrote:
         | >First of all, what's with the focus on tea bags?
         | 
         | According to the paper[0]:
         | 
         | > Among the different food containers releasing MNPLs, teabags
         | stand out. Recent investigations have elucidated that teabags
         | significantly contribute to the release of millions of MNPLs,
         | adding to their daily ingestion by humans (Banaei et al.,
         | 2023).
         | 
         | The cited Banaei et al., 2023[1] says "At this point, special
         | attention should be paid to the release of MNPLs from the
         | herbal/teabags, since during the soaking and steering
         | processes, some MNPLs inevitably detach and migrate to the
         | water solution", citing [2]...which is retracted with this
         | explanation: "2 of the reviews for this manuscript were
         | fictitious. 2 reviews were submitted under the name of known
         | scientists without their knowledge."
         | 
         | So, yeah. Sometimes it's interesting to follow citation chains
         | a few steps.
         | 
         | [0]
         | https://www.sciencedirect.com/science/article/pii/S004565352...
         | [1]
         | https://www.sciencedirect.com/science/article/pii/S030438942...
         | [2]
         | https://www.sciencedirect.com/science/article/pii/S004896972...
        
         | Reason077 wrote:
         | > _"from the cling wrap that covers our food as we heat it in
         | the microwave, from the Tupperware and other plastic containers
         | we heat our food up in"_
         | 
         | You shouldn't really be doing either of those things. Plastic
         | tupperware will get damaged from heat if you use it in the
         | microwave frequently, potentially contaminating your food.
         | 
         | It's best to transfer food to a heat-safe container (glass or
         | ceramic) before microwaving. And definitely don't use cling
         | film in the microwave!
        
         | tonygiorgio wrote:
         | Agreed. While some people are nit picking the comment here as
         | "well don't do any of those things," it still doesn't quantify
         | the danger.
         | 
         | Recently read from "Made to Stick": "Don't just say popcorn has
         | 40g of trans fats. Everyone knows trans fats are bad, but how
         | bad is bad? Say popcorn has more trans fats in one serving than
         | a whole day of greasy junk food"
        
         | jklinger410 wrote:
         | Tea drinkers in shambles
        
         | evrenesat wrote:
         | I eat processed, ready-to-eat stuff at home, heavily use
         | microwave for heating, but I don't do/use any of the things you
         | mentioned. I generally prefer loose leaf tea, but sometimes tea
         | bags are easier, so I only buy brands that use natural tea
         | bags. It's possible to reduce exposure to pollutants if you're
         | willing to sacrifice some convenience.
        
         | stevebmark wrote:
         | It is well established that _heating_ plastic in a culinary
         | context distributes significantly more microplastic into your
         | food.
         | 
         | Microplastics are also well established endocrine disrupters.
         | 
         | Microplastics cross the blood brain barrier and may also
         | permanently stay in your body.
         | 
         | To what extent are these harmful? In what dose, over how much
         | time? I don't think that's established. You could be
         | cautionary, or wait for more science about how long it takes to
         | reduce your fertility. It may also be inescapable, plastic is
         | likely a permanent earth pollutant now, in your clothes, dust
         | in the air, food, water, and most things in your home,
         | including ones you abrasives use inside your body, like
         | toothbrushes. Maybe only very high doses (like drinking tea
         | from teabags once a day) have a detrimental health effect. Many
         | compounds are lethal in high doses, and healthy, benign, or
         | required for survival in low doses.
        
         | ugh123 wrote:
         | >First of all, what's with the focus on tea bags? >Second, how
         | do "microplastics" compare to micro-everything else?
         | 
         | Not sure I understand your criticism. I think choosing tea bags
         | and microplastics in particular is a way to 'ground' a study
         | and experiments into something _practical_ , rather than
         | something too broad, abstract, and/or un-relatable to
         | consumers.
        
       | leobg wrote:
       | Curiously, it seems the best way to reduce (though not avoid)
       | micro plastic exposure from tea bags is to switch from cellulose
       | tea bags to plastic ones - nylon:
       | 
       | > polypropylene releases approximately 1.2 billion particles per
       | milliliter, with an average size of 136.7 nanometers; cellulose
       | releases about 135 million particles per milliliter, with an
       | average size of 244 nanometers; while nylon-6 releases 8.18
       | million particles per milliliter, with an average size of 138.4
       | nanometers.
        
         | vinckr wrote:
         | or use a small metal or ceramic bowl to hold the tea -> zero
         | plastic involved.
        
         | mandmandam wrote:
         | Well, no, because those measurements are per ml. A nylon bag
         | uses many more mls than a paper bag using plastic glue.
        
         | marcosdumay wrote:
         | The nylon strength and stability making for counterintuitive
         | trade-offs yet again. It's a ridiculously underrated material.
         | (Does it fare worse or better if reused? I don't have a clue,
         | but there are reusable nylon bags.)
         | 
         | Anyway, particle size probably matters, and I'm not sure it
         | wins on that count.
         | 
         | Also anyway, you can get a steel tea holder, so the best way is
         | to completely avoid plastics here. You can also probably get
         | your leaves much cheaper in 200g or 1kg bags.
        
           | leobg wrote:
           | Sure. I use whole leaf, brew it in a glass cup, and pass it
           | through a stainless steel sieve. Bags seem wasteful on so
           | many levels.
        
       | Beijinger wrote:
       | I don't know about tea bags, but guys, do yourself, your health
       | and your finances a favor and buy this:
       | https://www.amazon.com/dp/B0DF1ZHXPG
       | 
       | It works surprisingly well, the coffee tastes better and it is
       | not messy.
        
         | ysleepy wrote:
         | I just use a French Press.
        
           | bdcravens wrote:
           | We did for years, and even have a pretty cool one with dual
           | filtration that prevented almost all grit. (the Espro)
           | However, I didn't enjoy the wasted coffee and cleanup, and
           | found that using refillable pods used less coffee and mess
           | for the same product.
        
             | ysleepy wrote:
             | The annoying cleanup and wasted coffee seems specific to
             | the espro. Cleaning a normal one is really quick and I
             | don't mind the remainder of fines as they quickly settle at
             | the bottom of the cup.
        
         | bdcravens wrote:
         | We've used refillable pods for years now.
        
           | Beijinger wrote:
           | Yeah. Same shit with water. https://www.plasticpollutioncoali
           | tion.org/blog/2024/1/10/stu...
           | 
           | Currently, I buy Pellegrino at Costco. But probably I just
           | should get a sodastream with a glass bottle and filter my tap
           | water.
           | 
           | Shipping water from Italy. Fucking insane. Maybe I should
           | open my own bottling company with glass bottles.
        
             | ssl-3 wrote:
             | I filter my tap water because the water where I live tastes
             | like mud sometimes. (No, I'm not making that up. And yeah,
             | they've been working on it.)
             | 
             | I use an inexpensive carbon block filter that sits on my
             | countertop and connects to the faucet with a little
             | diverter valve. It works OK at reducing the taste issue
             | here.
             | 
             | But I'm in no way under the impression that doing so
             | somehow reduces the water's exposure to plastics. The pipes
             | in the house are plastic. The pipes under the street, if
             | recent, are plastic. The filters themselves are plastic.
             | 
             | I could get fancy and put in a nice reverse osmosis system,
             | but that's just layers of differently-shaped plastic.
             | 
             | For me, the solution is to simply not worry about the
             | things I cannot change.
             | 
             | (Although I guess I could go off the deep end and built a
             | still... But sheesh.)
        
         | cbdhsjshs wrote:
         | Cafelat Robot
         | 
         | Nothing but metal and silicone.
        
       | keepamovin wrote:
       | I can taste and feel the chemicals in tea bags, so I always wash
       | the bags with cold water, then a first draw of boiling water,
       | then I fill it up. Feels much cleaner.
       | 
       | When dealing with our highly processed factory food products that
       | come to you direct from a factory, a first wash with clean water
       | is usually a good bet.
        
       | hfgjbcgjbvg wrote:
       | Right on. Gotta love 2024.
        
       | jakub_g wrote:
       | Talking tea bags, this is a rabbit hole as a few sibling
       | commenters pointed out already:
       | 
       | - most tea bags contain plastic themselves
       | 
       | - pretty much every bakery / small coffee place place serves tea
       | in paper cups lined up with plastic, it's very difficult to get a
       | tea in a proper ceramic cup those days
       | 
       | - waters heaters often have plastic lids
       | 
       | - pretty much every insulated thermos also has at least a plastic
       | cover
       | 
       | For the last one, a friend has recently found some plastic-free
       | thermos: https://www.kleankanteen.com/collections/plastic-free
       | 
       | Please share if you know others.
        
         | xandrius wrote:
         | I think for most places in the world, tea is an activity done
         | at home with own cups/glasses.
         | 
         | Or at least, say in China/Taiwan, the heated tea gets made cold
         | in steel containers and then served cold in plastic cups (e.g.
         | For milk tea) else all is ceramic.
         | 
         | The main point is that even who doesn't go to buy a tea
         | elsewhere get in contact with microplastic. So, now many people
         | might have to switch to loose leaf to avoid getting another
         | source of microplastics in their daily lives.
        
           | jajko wrote:
           | Loose leaves are more inconvenient compared to tea bags. All
           | else equal dont expect major adoption just for yet another
           | health scare. People in general are lazy.
        
             | xandrius wrote:
             | Not really interested in what others do with themselves,
             | lifestyle is a personal choice. Although things like these,
             | if found to have an impact, should be out of reach from the
             | general public.
             | 
             | I find it interesting how for many (except for things like
             | MSG and fats) previously thought "health scares",
             | especially regarding plastic and the likes, have been found
             | to be detrimental to our health and still people sneer at
             | these initial studies. Given that, I'd personally rather
             | err on the side of caution, especially when the change is
             | so minute to be frivolous.
             | 
             | If someone told to stop eating, say, pizza then that would
             | be a whole other story. But not using plastic with hot
             | food/beverages? Not a big deal for me.
        
           | warkdarrior wrote:
           | > So, now many people might have to switch to loose leaf to
           | avoid getting another source of microplastics in their daily
           | lives.
           | 
           | Doesn't this study show that cellulose releases microplastics
           | as well? I assume tea leaves have cellulose in them, so best
           | to avoid tea altogether.
        
             | skirmish wrote:
             | If you are afraid of cellulose then you should stop eating
             | any vegetables and fruits. They contain large amounts of
             | cellulose also called "dietary fiber", which USDA says you
             | need large amounts of: about 30 grams per day.
        
         | highfrequency wrote:
         | Doesn't the first product (bamboo topped lid) have a rubber
         | ring to seal it?
        
       | solnyshok wrote:
       | hopefully, they did find some traces of tea in those tea-bags
        
       | righthand wrote:
       | There are tons of companies that have tea bags made out of
       | biodegradable materials such as tree bark. Or if you don't have
       | access, consider a metal steeper and loose tea. Unbelievable the
       | stuff people just shove in their gullet with no inspection.
        
         | mmh0000 wrote:
         | To be fair, if you live in a developed country, you have
         | organizations like the FDA which "should" be vetting the "food"
         | on store shelves as "safe".
         | 
         | Now whether or not they actually do a good job at that task is
         | a different question.
         | 
         | It's unfortunate that you'd expect millions of people to
         | individually "do research" (i.e. consult their crystal-stroking
         | astrologist nutjob friend on Facebook). There is no reasonable
         | way for individuals to make informed decisions regarding each
         | individual item they may eat.
         | 
         | The Good Place has a great little clip about just the
         | difficulty of buying a tomato:
         | https://www.youtube.com/watch?v=R8m_5HDZF7w
        
           | righthand wrote:
           | I don't expect millions of people to do research, I expect
           | people to look at the thing in front of them and think, "wait
           | what is this made of? It looks like plastic, maybe I should
           | be skeptical."
           | 
           | However if the country is going to be based on lobbying
           | efforts you better damn well be able to do a little research.
           | 
           | There is a reasonable way to make informed decisions. It
           | starts with skepticism and not just shoving food into your
           | face because it's popular.
        
             | jajko wrote:
             | Good luck meeting that expectation with people doing their
             | weekly grocwries.
             | 
             | Dreamy looks in the distance while difficult questions are
             | being answered, precise estimations based on looks and tons
             | of furious googling happening among the isles for each of
             | the 113 items bought that day. And then realizing 109 of
             | those are somehow interacting with plastics anyway, and
             | there is nothing better in the shop.
             | 
             | People have too much on their plate to grind their lives to
             | halt for 1 out of too many worries just for groceries.
        
               | righthand wrote:
               | Yes it's tragic but that's the world you're asking for,
               | people not to have to think because it's hard. You're
               | validating that with some ridiculous scenario. Let's
               | simplify it: is the consumable touching plastic? It's got
               | plastic in or on it. Is it processed food? It's got
               | plastic in or on it.
               | 
               | If you want to take the approach where you buy a bunch of
               | stuff and then sit down for hours auditing everything you
               | spent money on, then that's on you. Consider that if the
               | issue is so extensive you can do the analysis piecemeal
               | if paranoia of it all causes you to be exhausted.
               | 
               | Or don't wait for reports like this and a politicized
               | regulatory agency in the age of hysteria to make the
               | decisions for you.
        
             | cbdhsjshs wrote:
             | Why should the average consumer be concerned about plastic?
             | Plastic food packaging has been the norm my whole life.
             | 
             | You're asking a consumer to do what a regulatory
             | institution should do.
        
               | righthand wrote:
               | A regulatory institution that's constantly politicized
               | and lobbied for corporations to have profits maximized
               | will do the right thing. You are asking to be treated
               | like cattle at that point.
        
               | cbdhsjshs wrote:
               | You're expecting cattle not to act like cattle.
               | 
               | We all are cattle to institutions. Maybe you're someone
               | that fact-checks the FDA's science, but do you also fact-
               | check the Dept of Ed's pedagogy, or the federal reserve's
               | fiscal policy?
               | 
               | We need strong institutions that act in the interests of
               | the average citizen. You're right that we don't have that
               | now, but fixing broken institutions is more realistic
               | than everyone becoming genius polymaths with infinite
               | free time for research.
        
               | righthand wrote:
               | I'm just suggesting ways for people to help themselves.
               | All this "but the government should do it for me" talk
               | while ideal isn't something that can be accomplished
               | today. Furthermore a consumer reports subscription is
               | very valuable to bridge the gap and they're entirely
               | donation based publication (and impressively thick with
               | information). HN readers may be interested in this
               | article on microplastics in General Mills products:
               | 
               | https://www.consumerreports.org/health/food-
               | contaminants/the...
        
         | frankus wrote:
         | If you buy tea from Starbucks in North America you're getting a
         | nylon teabag. Maybe I should be more paranoid about
         | microplastics but I avoid them because I can't just toss them
         | in the compost like I can with paper- or silk-based ones.
        
       | 1over137 wrote:
       | https://archive.is/mAXxS
        
       | javier_e06 wrote:
       | One solution is cut the bags with scissors and use the leaves. I
       | remember those metal pods with a chain. Before tea bags became a
       | thing.
        
       | hyperific wrote:
       | To all those who are asking "Why teabags?", it's in the
       | introduction section of the study.
       | 
       | > Among the different food containers releasing MNPLs, teabags
       | stand out. Recent investigations have elucidated that teabags
       | significantly contribute to the release of millions of MNPLs,
       | adding to their daily ingestion by humans (Banaei et al., 2023).
        
       | darrensharm wrote:
       | That's why most tea bags in Germany are made from starch. Land of
       | high tech engineering, I guess.
        
         | leobg wrote:
         | It's just one of those areas where we weren't quite fast enough
         | to catch up with the U.S. in copying their mistakes. Though I
         | think it is true that the tea bag used to be a German idea.
        
         | morsch wrote:
         | Most tea bags in Germany aren't made from starch. Am I missing
         | something?
         | 
         | https://de.m.wikipedia.org/wiki/Teebeutel
        
       | blueflow wrote:
       | > The paper is published in the journal Chemosphere.
       | 
       | From https://news.ycombinator.com/item?id=42494733
       | 
       | > The publisher of a high-profile, now-corrected study on black
       | plastics has been removed from a critical index of academic
       | journals after failing to meet quality criteria, according to a
       | report by Retraction Watch.
       | 
       | >On December 16, Clarivate--a scholarly publication analytics
       | company--removed the journal Chemosphere from its platform, the
       | Web of Science, which is a key index for academic journals.
        
       | semiquaver wrote:
       | Also on the front page: the journal this study was published in
       | was recently removed from a major index of journals for failing
       | to meet quality criteria:
       | https://retractionwatch.com/2024/12/18/journal-that-publishe...
        
       | giantg2 wrote:
       | I switched to tea balls simply because I could taste the bags. I
       | guess this is an added bonus.
        
       | canadiantim wrote:
       | Not surprising. I've always assumed this was the case.
        
       | nycdatasci wrote:
       | In this study, they placed 300 tea bags in 1 liter of near-
       | boiling water. For those asking "why tea bags?" they're widely
       | used and easy to research. Putting 300 tea bags into a container
       | is much easier than sequentially microwaving a liter of water in
       | 300 different plastic containers to measure the impact of
       | microwaving food in plastic.
        
       | bruce343434 wrote:
       | Why don't people just use stainless steel tea eggs??
        
       | AwaAwa wrote:
       | Cellulose is microplastic? I wonder what paper straws shed?
        
         | kccqzy wrote:
         | Cellulose is supposed to be dietary fiber. For which there is a
         | recommended daily intake amount.
        
       | exabrial wrote:
       | Absolute garbage study. Leave this on reddit and tiktok.
        
       | raffraffraff wrote:
       | I must be damn near made out of micro plastics by now. I
       | shouldn't stand close to the fire.
        
       | slowmovintarget wrote:
       | This is why we switched back to loose leaf tea + high quality
       | porcelain (Chinese porcelain has too much lead in it) + stainless
       | steel strainers. When you do this, all of sudden the quality of
       | the tea makes a huge difference. You learn what "second flush
       | Assam" means, for example.
        
       | bithead wrote:
       | >A study by the Mutagenesis Group of the UAB Department of
       | Genetics
       | 
       | If I drink this tea will I gain latent mutant powers?
        
       | jaequery wrote:
       | damn, i've been drinking bagged green tea 3x a day ...
        
       | formvoltron wrote:
       | when i try to warn friends about this they think i'm just a
       | complete screwball.
        
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