[HN Gopher] Why are some egg yolks so orange?
       ___________________________________________________________________
        
       Why are some egg yolks so orange?
        
       Author : azizsaya
       Score  : 242 points
       Date   : 2022-04-17 08:55 UTC (14 hours ago)
        
 (HTM) web link (www.foodunfolded.com)
 (TXT) w3m dump (www.foodunfolded.com)
        
       | guerby wrote:
       | What I've Learned did a video on eggs in Japan (where eggs are
       | differentiated depending on feed):
       | 
       | https://www.youtube.com/watch?v=cjrxXC3kGf4
       | 
       | "The #1 Egg consumer is Japan. Here's why. ($70 vs $1 Egg)"
        
         | Enginerrrd wrote:
         | This was a nice little side tangent. Thanks for sharing.
        
       | 0des wrote:
       | chitin from bugs.
        
       | riffraff wrote:
       | Extra bit of trivia: the article mentions that southern Europe
       | prefers darker orange, and indeed it's not uncommon in Italian to
       | hear the egg be divided in "bianco e rosso" (White and red).
       | 
       | In recent years it seems the yellow color has become more common
       | though.
        
         | carlob wrote:
         | I have seen eggs marketed specifically for pasta making which
         | were darker orange to guarantee yellower pasta.
        
         | cinntaile wrote:
         | Their fanta is a darker orange too!
        
       | phonescreen_man wrote:
       | Eggcellent, what a cracking article!
        
       | jonathanlydall wrote:
       | I live in South Africa and the yolks of the eggs my wife and I
       | buy are absolutely not nearly white. It may differ by supermarket
       | though, I generally shop at Woolworths which markets itself as
       | having the best quality food, while also charging extra as a
       | result.
       | 
       | Otherwise, perhaps it's only something which tends to occur with
       | chickens grown by people for themselves in rural areas?
        
       | Jaruzel wrote:
       | To save people a pointless click:
       | 
       |  _In the end, your egg depends on what the chicken eats, and the
       | chicken depends on what the farmer feeds it. So, don't worry too
       | much about the colour - just enjoy your egg!_
        
         | fisian wrote:
         | I found that conclusion weirdly dismissive, given how detailed
         | the carotenes and their effect and regional preferences were
         | described. It doesn't do the article justice to summarize it
         | like that.
        
         | azizsaya wrote:
         | That's Eggstreme @Jaruzel. Humankind would still be living in
         | caves without your public service.
        
         | arkj wrote:
         | >> 4. I will vote you down if you 'tl;dr and summarise' any
         | article; We're all grown-ups, and we all know how to read
         | thanks.
         | 
         | Isn't your comment against your own policy?
        
           | tekknik wrote:
           | did you just research someone's profile in an attempt to nit
           | pick something they said?
           | 
           | There's definitely a problem online these days, when people
           | take 5 pages to state 2 sentences worth of points, and it's
           | not the TLDR people...
        
             | azizsaya wrote:
             | did you just waste a min of your time by stating the
             | obvious and trying to add some fuel to fire?
             | 
             | article and discussion is about Eggs! you are free to click
             | and comment on something else if you find it pointless.
        
           | Jaruzel wrote:
           | You get an up-vote for that. Well done!
           | 
           | I felt the whole article was pointless fluff, and just had to
           | call it out. I feel no guilt.
        
           | blamazon wrote:
           | We all know how to read, but do we all know how to click?
        
           | scns wrote:
           | Cognitive dissonance. Believed i didn't have it, i was wrong
        
         | em500 wrote:
         | The other points are that:
         | 
         | - color preference varies by country
         | 
         | - in mass production, the yolk color can be tweaked by the
         | producer with food additives (e.g. https://www.dsm.com/anh/en_N
         | A/products/carotenoids/carophyll...)
        
       | thrdbndndn wrote:
       | Why do all the images in this article have wrong/fake EXIF?
       | 
       | (Well, not all; it looks like that they copied the EXIF of the
       | first image (which has the matching EXIF Image description of
       | "Egg yolk in wooden spoon on eggs. Close up.", together with all
       | the other camera/lens info) to all the other images for some
       | reason. Nothing serious, but weird practice nevertheless.)
        
         | b0ner_t0ner wrote:
         | My guess is the intern who saved the photos wanted to make them
         | the same dimensions copy and pasted all subsequent photos
         | onto/from the first photo exporting from that; that's why the
         | captions are the same for the rest of the photos.
         | 
         |  _Edit:_ and also notice the file names as _in-article-
         | eggyolks#.jpg_ which confirms my theory somebody saving over
         | the original photo.
        
         | aendruk wrote:
         | I'm curious to learn how you ran across this. A browser
         | extension that surfaces the data? Or do you regularly go around
         | downloading and inspecting images as you read?
        
           | thrdbndndn wrote:
           | Yeah, I use an extension [1] that shows EXIF data on hover.
           | Very handy.
           | 
           | [1] https://chrome.google.com/webstore/detail/exif-
           | quickview/kji... (there are lots more advanced ones on Chrome
           | store / AMO, but this works for me.)
        
       | xd wrote:
       | I have a few ex-battery hens and what I now view as a good egg is
       | one you can crack into a pan of boiling water and it holds
       | together, giving you a perfect poached egg in a couple of
       | minutes. Store bought eggs tend to fall apart in water.
        
         | 4ad wrote:
         | That's because store bought eggs are not fresh.
        
           | NikolaeVarius wrote:
        
           | madaxe_again wrote:
           | Not fresh is an understatement in many parts of the world. In
           | the U.K., it's up to 60 days - and in the U.S., it's common
           | for eggs in grocery stores to have been laid 6 months
           | previously.
        
             | mcculley wrote:
             | Do you have a citation for this? I find this to be
             | surprising given that I have heard the exact opposite: That
             | efficient supply chains lead to eggs too fresh to easily
             | deshell when hard boiled.
             | 
             | When I had my own hens I would deliberately age the eggs I
             | intended to hard boil.
        
               | em500 wrote:
               | I'm similarly skeptical. Both the demand and supply for
               | eggs are probably quite predictable (save for the
               | occasional bird flu outbreak), so why would the industry
               | create big egg buffers/stockpiles?
        
             | OJFord wrote:
             | Wow, 6 _months_?! Why? Supply is pretty continuous, can
             | keep them pretty much anywhere (even if there was just one
             | county in one state suitable for rearing hens.. you could
             | _post_ them to any other faster than that?), what
             | introduces such delay?
        
               | Tagbert wrote:
               | I am skeptical of that statement. It would be 6 times
               | longer than the legally allowed time, for one thing.
        
               | madaxe_again wrote:
               | Price stability requires a stockpile - there are egg
               | warehouses dotted around the US, and they exist pretty
               | much solely to ensure a regular supply and therefore
               | predictable price of a very fundamental foodstuff.
        
             | dzhiurgis wrote:
             | I always think how come eggs can stay so fresh so long? Is
             | there any other "whole" protein that stays fresh so long?
        
               | verve_rat wrote:
               | When you are trying to have babies, having them go off is
               | a bit counter productive.
        
               | phyzome wrote:
               | I suspect eggs just have a bunch of antibacterial
               | compounds in the membrane and albumin.
        
             | tssva wrote:
             | By law in the US farmers have up to 30 days to package eggs
             | and then the eggs have to be sold within another 30 days,
             | so the oldest eggs on the grocery shelf can be is 60 days.
             | Most eggs are packaged and in a store for sale shortly
             | after being laid.
        
             | thom wrote:
             | I get nauseous eating most store bought eggs, and it took
             | me years and a couple of Reddit threads to realise this was
             | the reason, as opposed to an allergy or whatever. Buying
             | fresh I never have a problem.
        
               | h2odragon wrote:
               | I got _whanging_ deadly headaches whenever i ate store  /
               | commercial eggs; I got chickens and discovered that its
               | not actually the eggs thats the problem for me:
               | 
               | If i feed my chickens _non-medicated_ feed, I 'm able to
               | enjoy their eggs. If i get them the feed with amoxicillin
               | in it, headaches.
               | 
               | The wild thing is amoxicillin itself never seemed to have
               | any bad side effect on me, I've done several courses of
               | it over the years without trouble.
        
             | robga wrote:
             | EU legislation is that best before dates are at most 28
             | days from date of lay. Has the UK changed its law after
             | Brexit? Not to my knowledge.
             | 
             | Red Lion stamped eggs still advertise the 28 day best
             | before date. "For Lion eggs this must be shown on the shell
             | (although this is not a legal requirement). Eggs have to be
             | collected from farms at least twice a week and in practice
             | most Lion eggs are delivered to the supermarket within 48
             | hours of being laid."
        
         | [deleted]
        
         | euroderf wrote:
         | As a kid I raised chickens and in the morning I could wait in
         | the coop for an egg to drop. This egg always stood up in the
         | pan. All fresh eggs stand up. The whites in store-bought eggs
         | tend to be watery and spread out quickly, indicating that
         | they've been sitting outside the chicken for an extended
         | period.
        
       | dzhiurgis wrote:
       | I'm a sucker for premium orange yolk eggs. My partner is sucker
       | for buying eggs from a guy who grows them in his backyard.
       | 
       | Sometimes, especially when making creamy scrambled eggs I can
       | almost taste fishy or shellfish flavour (not something I like).
       | We are based in NZ and I've heard people use sea shells as a
       | source of calcium for hens, but I find hard to believe that it
       | could be it.
        
         | zhte415 wrote:
         | Give fresh eggs a couple of days to a week to mellow. The
         | flavour of a just-layed egg from a backyard chicken with a rich
         | diet can be pretty intense.
        
         | refurb wrote:
         | Why would you be surprised? Why throw out scrap fish and
         | seafood when you could sell it as chicken feed?
        
         | throwaway13337 wrote:
         | I believe it's the choline. It tastes fishy and eggs have a
         | very large content of it.
         | 
         | I don't know that backyard eggs would have more of it but the
         | slight fishy taste in eggs is (and liver) is due to it.
        
         | ryanmercer wrote:
         | The "fishy" taste is likely indicative of a higher omega 3
         | content, you get the same taste from 100% grass fed and
         | finished beef and buffalo due to the higher omega 3 content.
        
           | itsoktocry wrote:
           | Omega-3 doesn't taste like fish unless it's literally fish
           | oil, which is often an additive to improve the 3-6 ratio of
           | foods. Flax seed doesn't taste like fish...
           | 
           | Grass fed beef tasting "fishy"? I've never experienced that
           | and can't imagine how it would work.
        
             | geitir wrote:
             | In my experience cheaper grass fed beef in the US commonly
             | tastes gamey which can be interpreted as fishy.
             | 
             | More expensive grass fed doesn't have this problem, so it
             | likely has to do with diet or the cut.
        
               | robocat wrote:
               | The difference could also be due to how long the beef is
               | hung or aged. Beef tasting too "gamey" might not be hung
               | long enough (suggestion made last night by small farmer
               | friends, fwiw).
        
             | 0ldskool wrote:
             | i guess it depends on what type of fish you eat. I often
             | eat relatively fresh salmon. I wouldn't say it tastes fishy
             | even though its fish. It tasty oily, so much oil comes out
             | in the baking process.
        
           | teruakohatu wrote:
           | > 100% grass fed and finished beef
           | 
           | I am not sure this is true. I live in a country (NZ) where
           | most cattle are grass fed their entire lives. This is
           | supposed to mean higher omega 3 content but I have never
           | tasted a fishy taste. Not even once.
           | 
           | If grass fed and fishy taste are corrolated, I suspect there
           | is another cause. Maybe organic fish containing grass
           | fertiliser?
        
           | walterlb wrote:
           | We just started smelling/tasting some fishy flavor with eggs
           | from one of our hens. We suspected flaxseed in the feed we
           | were giving, and switching feeds seems to have fixed it.
           | 
           | Brown egg layers are apparently more prone to this issue
        
         | DiffEq wrote:
         | This will happen if you feed your chickens salmon or other
         | fish. I have chickens and yes I occasionally my sons or wife
         | will feed them left overs and it may be some salmon skin we did
         | not eat, some fish bones and heads that we did not eat, etc.
         | When we do this the eggs take on that taste. I don't like it
         | either and if it does happen then I feed those eggs to the
         | dog....
        
           | igetspam wrote:
           | You should give them back to the hens. They prefer them fresh
           | but they'll eat them cooked too. Producing an egg takes a lot
           | of nutrients. They'll any that crack, to help replenish.
           | They'll eventually eat the shells too, which helps with their
           | digestion.
        
             | margalabargala wrote:
             | This is a good way to teach hens that "eggs are food" and
             | they may start eating their own eggs before you can get to
             | them.
        
               | igetspam wrote:
               | I have not had that experience. None of my current hens,
               | or the dozens I've had, will eat them unless they're
               | cracked. I toss them eggs every day and of the egg
               | bounces without breaking, they will tap it with their
               | beak and then leave it be. I know it can happen but I've
               | not had it happen in the four or five years I've been
               | keeping chickens. Although we wouldn't mind. We have them
               | as pets and don't eat many of the eggs.
        
       | TecoAndJix wrote:
       | I got five chickens last year and now have more eggs then I know
       | what to do with (so we give a lot away). Everyone that has them
       | says they are so much better and I have wondered if that is just
       | due to them being able to see the chickens and their home. It is
       | near impossible to hard boil the eggs they lay because the
       | "membrane" (layer between the shell and egg-stuff) is so thick.
       | The yolk is a darker yellow as well. I feed them mid-priced
       | crumbles from tractor supply and give them scraps maybe once per
       | week.
        
         | yostrovs wrote:
         | Keep the fresh eggs on the counter for a week or so before
         | boiling, and your shell will come off properly.
        
           | igetspam wrote:
           | We keep ours in a skelter and I boil a dozen of so when it
           | starts to overflow. This has been my experience as well.
           | 
           | I have 17 chickens, 16 of them are hens. I get 9-12 a day and
           | my neighbors love me because we don't eat them. The yolks are
           | big and deep orange/yellow and people seem to love them. I
           | have y purchased an egg in a few years so I have no frame of
           | reference any more. They're free range and they eat
           | everything they can find (snakes, frogs, lizards, bugs,
           | plants) and all the feed and scratch I feed them.
        
           | caymanjim wrote:
           | If you do this, it's vital that you do not wash the bloom
           | off. Once you wash eggs you have to refrigerate them.
        
             | hammock wrote:
             | No one does that except the egg processors
        
               | caymanjim wrote:
               | I've seen many amateurs do it. There's been a big uptick
               | over the past decade of people raising chickens in their
               | back yards without having any experience or guidance. Not
               | that you need a lot; just important to do some research.
        
               | Kerrick wrote:
               | For particularly messy eggs I'll do it right before
               | cracking them. But they stay dirty until it's time to
               | cook.
        
         | goda90 wrote:
         | If you're at all interested in storing eggs long term, look up
         | "water glassing". It needs to be done with freshly laid eggs,
         | but the eggs are still edible months later.
        
         | mpalczewski wrote:
         | I finally found a full proof way of making any egg easy to
         | peel. I wonder if it would work with eggs like these. I
         | pressure steam then in an instant pot for about three minutes.
        
         | urthor wrote:
         | https://scholar.google.com.au/scholar?hl=en&as_sdt=0%2C5&q=B...
         | 
         | Research says that the nutritional value is not significantly
         | different between organic and backyard.
         | 
         | However, I expect the fact the backyard eggs are fresh laid is
         | the big differentiator. The supply chain between farm and
         | supermarket is huge, whilst backyard eggs can be laid that day.
        
           | simonsarris wrote:
           | What research are you talking about? I've found the opposite:
           | https://twitter.com/simonsarris/status/1487156557146210306?t.
           | ..
        
             | bombcar wrote:
             | Free Range is not the same as organic - if you compare
             | backyard eggs to eggs that are basically someone else's
             | backyard it's understandable there's little difference.
             | 
             | Free range just means the chicken can go outside or turn
             | around. It says nothing about the feed or breed.
        
           | tastyfreeze wrote:
           | In the US farmers have 28 days to get eggs in cartons. Once
           | in cartoons eggs must be sold in 30 days. Store eggs can be
           | quite old. Freshness is likely a big part of flavor. I
           | suspect that the US egg washing method may affect flavor as
           | well. Home eggs typically aren't washed and are only a few
           | days old. The eggs I sell were laid that week.
        
         | wincy wrote:
         | My friend had some eggs from his chickens in his backyard and I
         | was surprised I didn't like them as much as the Happy Egg Co.
         | Heritage Breed eggs I buy at Sprouts. The eggs are $8 a dozen
         | and the only eggs I'll eat now. Everything else tastes off.
         | Maybe the flavor is from the breed of chicken? The eggs are
         | brown and blue.
         | 
         | They definitely have the same hard boiling issue with a strong
         | membrane.
         | 
         | I want it to be placebo as these eggs are expensive and I spend
         | a few hundred a month on them. But I've bought every expensive
         | brand of egg I can (Vital Farms, among others, which _used_ to
         | taste amazing then became popular maybe and tasted like any
         | other egg?) and _only_ this brand tastes different than a bog
         | standard cheap egg.
         | 
         | The same thing happened with Kerrygold butter. Regular cheap
         | butter tastes like I'm eating Crisco now.
        
           | tayo42 wrote:
           | how are you eating these eggs?
        
           | twic wrote:
           | > The eggs are $8 a dozen [...] and I spend a few hundred a
           | month on them
           | 
           | You eat over 300 eggs a month?
        
             | TheSoftwareGuy wrote:
             | It's not that crazy the more I think about it. If he has a
             | spouse and 2 kids (so 4 people in this house), and each
             | person eats 3 eggs for breakfast everyday for 30 days
             | that's 360 eggs
        
               | ipaddr wrote:
               | That could become a health issue if this is longterm.
        
               | smilliken wrote:
               | If you have a reason to think eggs are unhealthy, state
               | the reason so that there can be a discussion. Eggs are as
               | close to a miracle food that I know, and I think it would
               | be a shame to discourage their consumption.
        
               | mikehotel wrote:
               | The USDA prohibits eggs from being called safe or
               | nutritious because of their cholesterol and saturated fat
               | content.
               | 
               | Video and transcript expanding on this available at
               | https://nutritionfacts.org/video/who-says-eggs-arent-
               | healthy....
        
               | wrycoder wrote:
               | Personally, I would not pay any attention to that
               | whatsoever.
        
               | datguacdoh wrote:
               | also other cultures eat many savory egg dishes as well
               | that makes egg use outside of breakfast quite common. my
               | family of 4 goes through about that many eggs because of
               | many lunch and dinner egg dishes we eat. I've been
               | personally shocked by how many eggs we go through a week,
               | but buying flats at local farmers markets has helped
               | quite a bit.
        
               | justsomehnguy wrote:
               | > 3 eggs for breakfast everyday
               | 
               | Ugh! I would start to crow if I would eat that much.
        
           | TinyRick wrote:
           | You buy 25 dozen eggs per month? How are you spending a few
           | hundred a month on eggs even if they're $8/dozen
        
             | wincy wrote:
             | Okay maybe 12 dozen. But my family eats a lot of eggs!
        
           | tastyfreeze wrote:
           | Dude get some chickens. My cost per dozen is around $3 at
           | current feed prices and 60% laying rate. If you feed them
           | your kitchen scraps the feed cost is even lower.
           | 
           | The eggs you get that dont peel well are fresh. Less than 2
           | weeks old. Home grown eggs are the same way until they age
           | and dry out a bit.
        
             | ipaddr wrote:
             | How long do they keep producing eggs and what do you do
             | with the chickens after?
        
               | tastyfreeze wrote:
               | They will keep producing their whole life. However,
               | production drops way off after 3 years. My wife isn't
               | keen on butchering or I would make soup with old hens. I
               | have some freeloading birds right now that will get to
               | live out their life while only giving me manure and an
               | occasional egg. When they die they become compost.
               | 
               | I do keep dual purpose birds in the event that food
               | supplies require a sacrifice to feed my family. It costs
               | a little more to feed heavier hens but the security is
               | worth it.
        
         | stickfigure wrote:
         | Kenji covered hard boiling eggs with scientific rigor:
         | https://www.seriouseats.com/the-secrets-to-peeling-hard-boil...
         | 
         | We have backyard chickens and hard-boil a lot of eggs. The
         | biggest effect on peel-ability: Start with boiling water, do
         | _not_ start the eggs in cold water.
         | 
         | For years I started with cold water because that's what Alton
         | Brown said to do in Good Eats. And for years the eggs were a
         | pain to peel. When I read Kenji's article, I switched, and
         | immediately eggs became much easier to peel. Night and day.
         | 
         | No other factor comes close in terms of effect. Not age, not
         | backyard vs store bought. Not the breed (at least, not for any
         | of the dozen chicken breeds we have had). Start with boiling
         | water and 9/10 eggs peel nicely, start with cold water and 9/10
         | eggs peel terribly.
        
           | lazyant wrote:
           | Add salt and they peel fine (they say vinegar too but I
           | didn't find it so effective)
        
           | saltcured wrote:
           | I'm not sure how accurate this is, but I was told decades ago
           | that starting with cold water was mostly based wanting to
           | avoid scalded hands when placing the eggs into water or to
           | avoid cracked shells from impact of the raw eggs with the pot
           | or with each other.
        
             | ______-_-______ wrote:
             | If that's the case, tongs are your friend.
        
           | [deleted]
        
           | zhynn wrote:
           | I steam them to get consistent hot exterior temps. Plus it is
           | easier to rinse them when they are in a steamer basket. And
           | it uses less water. And the water is faster to boil.
           | 
           | Totally agree with you on this though.
        
           | foobiekr wrote:
           | This is interesting to me because pressure cooker eggs start
           | cold but after a few dozen batches, fresh eggs or old, I've
           | never had a batch that was hard to peel. I do ice bath them
           | though.
        
           | jgerrish wrote:
           | I've been stuck in Egg Hell for years, and old cookbooks and
           | Good Eats (which is so great and engaging on so many other
           | topics).
           | 
           | And it was the Internet that just now added more votes for
           | pre-boil and peel-ability.
           | 
           | Cool Internet, Cool.
        
         | jedimastert wrote:
         | I think that, separate from any objective difference in
         | "quality" of the eggs, seeing happy chickens is a perfectly
         | fine reason to derive more enjoyment from consuming the eggs in
         | question.
        
         | tastyfreeze wrote:
         | Do a blind taste test with store bought and home grown eggs.
         | You will be able to tell. After years of eating home grown
         | eggs, I nearly spit out store eggs when I had them. The texture
         | and flavor is so bad it was an immediate involuntary response.
         | Home eggs are velvety and rich in flavor. Store eggs tasted
         | like bland rubber. I say the difference is as stark as
         | comparing scrambled store eggs and reconstituted powdered eggs.
         | 
         | My wife claimed there was no difference for a very long time.
         | She had the same experience when we needed to buy store eggs
         | last winter.
         | 
         | Strangely, when going from store eggs to home eggs the
         | difference isn't as pronounced.
        
           | tick_tock_tick wrote:
           | How do you square your results with actual blind tests that
           | show no results? How confident are you that you actually
           | controlled for things like color?
        
             | tastyfreeze wrote:
             | Did I sit down with a blindfold on and eat unknown eggs?
             | No. I will eat anything that is food. I had every intention
             | of eating the store eggs with no hesitation. I even ate
             | them after taking pause at involuntary revulsion to the
             | tasteless gelatinous mass I was chewing on. I grew up
             | eating store eggs. Now I will avoid them when possible.
        
           | person22 wrote:
           | I have been raising pastured free range egg chicks for years.
           | If I don't see the color of the yolk, I can't tell the
           | difference between mine and store bought.
           | 
           | Oddly enough, others can and cooks say the whites are much
           | easier to whip.
        
           | the_af wrote:
           | Out of curiosity, did you do a blind test yourself?
        
             | tastyfreeze wrote:
             | Yes, when visiting friends and not knowing the provenance
             | of their eggs until asking after putting eggs in my mouth.
        
               | Kerrick wrote:
               | Could that be down to your friends' skill at cooking eggs
               | vs. your own?
        
               | [deleted]
        
         | vic-traill wrote:
         | This is very true. Years ago we had chickens, and fresh eggs
         | (laid over the past couple of days) were _impossible_ to peel
         | the shell from after hard boiling.
         | 
         | We started soft boiling, knocking the head off and using a
         | small spoon to eat. It was either that or fried/scrambled.
         | 
         | I never did find out how long a fresh egg would have to age in
         | order to become peelable when hard boiled.
        
           | dredmorbius wrote:
           | Soft boiled, take the tops off with a chef's knife on a
           | butcher block.
           | 
           | So long as the yolks are waxy, little mess. And it's fast and
           | sweet.
        
         | js2 wrote:
         | I recently started using a pressure cooker (instant pot brand)
         | to make hard cooked eggs. I use a 4 minute cooking time,
         | instant release the pressure, then plunge the eggs right away
         | into cold water to stop their cooking.
         | 
         | Even fresh eggs peel perfectly.
        
           | googlryas wrote:
           | +1 to pressure cooker for a few mins + cold water bath. I
           | tried all the tricks normally stated for hard boiling eggs,
           | and always had half the eggs just refusing to come out of
           | their shell. 100% of the time with my instant pot they just
           | slip out of the shell.
        
           | drost wrote:
           | I poach eggs for breakfast in my InstantPot. 3 eggs for 5
           | minutes on steam. I've found that eggs with orange yolks tend
           | towards a jammy texture, but yellow yolks tend towards a
           | drier texture.
        
             | ncmncm wrote:
             | When poaching eggs in water the usual way, a tablespoon of
             | vinegar in the water keeps them together, not scattered all
             | over the pan.
        
           | giantg2 wrote:
           | Thanks! I'm going to have to try that.
        
             | js2 wrote:
             | Hmm, seems serious eats doesn't agree, but I've tried
             | everything over the years and the instant pot has worked
             | best for me.
             | 
             | https://www.seriouseats.com/the-secrets-to-peeling-hard-
             | boil...
        
         | zwieback wrote:
         | When we had chickens I made a lot of flan and meringues, also
         | stuff like lemon curd. Anything to keep up with the flood of
         | eggs.
        
         | anonu wrote:
         | > near impossible to hard boil the eggs they lay because the
         | "membrane"
         | 
         | I am curious about this. Is it maybe your boiling technique
         | that is causing this hard membrane? Proteins toughen up if
         | exposed to too much heat.
         | 
         | I get my eggs up to room temperature and drop them into boiling
         | water for 6.5 minutes at sea level. Then I remove the hot water
         | immediately and let them cool. These eggs (no matter where they
         | come from) are always easy to peel and never too tough.
        
       | waihtis wrote:
       | Very interesting. I alternate between purchasing organic eggs and
       | a variety called the Omega-3 egg; the former having a very bright
       | yellow yolk and latter a deeper orange.
       | 
       | Was always curious if one is "better" than the other.
       | Interestingly, the omega variety tastes much better.
        
         | dav_Oz wrote:
         | Taste can be highly subjective and suggestible. There is a
         | german saying: _Das Auge isst mit._ (literally: the eye eats
         | with you) which kind of makes you aware that a lot of things
         | end up determining taste [0] beside the direct experience of
         | consistency and composition. Applying to colors: one can use
         | different colors in placebo pills to suggest very different
         | effects [1].
         | 
         | In case of direct intervention, different diets given to hens
         | can significantly modify the fat composition and content [2].
         | Fat being a major constituent of direct taste experience by
         | "enhancing" (solution medium for phytochemicals etc.) and
         | determining consistentcy. There are basically no carbs in eggs
         | so in this case this can be left out.
         | 
         | Taste:
         | 
         | PUFAs (Omega-3s, Omega-6s, Omega-9s ...) are chemically
         | speaking highly unstable (multiple double bonds) under normal
         | conditions, all by themselves they oxidize completely very
         | quickly* to avoid this you can shield them for a while with
         | antioxidants (e.g. phytochemicals) and encase them with more
         | stable fat (SFA (no double bonds), MUFA (one double bond)).
         | PUFAs with their significantly lower melting point contribute
         | to the perceived creaminess at even very cool temperatures:
         | e.g. irish butter (high Omega-3 content) vs
         | "normal"/cheap/highly industrialized butter (low).
         | 
         | [*consequently becoming "rancid" in taste. A lot of people are
         | actually so used to that taste in highly processed/fast food
         | (oxidized fats through excessive heat) that they consider it
         | "very tasty". Analogous to the "burned" coffee taste/smell a
         | lot of older folks (habit, childhood memories) still enjoy.]
         | 
         | Health:
         | 
         | In the typical modern western diet (because of massive
         | inclusion of industrial cheap plant sources) the ratio of Omega
         | 3's/6's is way off like 20:1 and more in favor of 6's.
         | Analogous to Vitamin A (Carotenoids/Retinol) the plant form of
         | Omega 3 (ALA) is inefficiently converted[3] by humans (young
         | women probably because of different needs (pregnancy) can
         | utilize it a bit better than men) to a bioactive form, adding
         | to the disbalance. We evolved to get a significant amount of
         | Omega 3's from animal and marine (rivers/sea) sources
         | (ultimately the primary bioreactors for easily convertible
         | EPA/DHA being (marine) algea and phytoplankton).
         | 
         | Maybe what hens get to eat could be seen as something very
         | minor to consider. I actually would like it on the label (as an
         | ingredients list for the sophisticated "bioreactor" maybe incl.
         | the conditions like hours outside to produce Vitamin D,
         | antibiotics given ...) that's why I'm more inclined if I am
         | able to buy regionally to see for myself. In talks with farmers
         | a lot of them - if they bother to engage in a conversation -
         | are actually very knowledgeable and aware about this, as a city
         | dweller just informing myself from books/studies I'm constantly
         | impressed about their virtuosity.
         | 
         | [0]https://en.m.wikipedia.org/wiki/Alfred_Korzybski#Anecdotes
         | 
         | [1]https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2359128/
         | 
         | [2]https://www.nature.com/articles/s41598-021-00343-1
         | 
         | [3]https://en.m.wikipedia.org/wiki/Omega-3_fatty_acid#Conversio
         | ...
        
       | intsunny wrote:
       | When I moved to Germany five years ago, I was stunned at how
       | intensely orange the yolks were compared to the USA. But now I've
       | noticed the color has significantly mellowed out.
       | 
       | Glad to know that this does not correlate with a decrease in
       | quality.
        
       | admeyer wrote:
       | We get a lot of eggs from our neighbors and other local egg
       | producers who put a lot of effort into raising healthy chickens.
       | In addition to a deep-colored yolk I like to see how tall the
       | yolk sits in the pan. For freshness, you might see thin, white
       | ropes trailing from the yolk called chalazae.
        
       | sethammons wrote:
       | I don't know. I raise chickens. The only difference I've been
       | able to determine between darker and lighter yolks are the age of
       | the eggs. Same food for all the birds. If we don't go through the
       | eggs fast enough, they go from orange to yellow. I'm not saying
       | you can't fake it with additives, but the post must be missing
       | something.
        
         | beowulfey wrote:
         | Oxidation maybe? It would probably lead to color loss as
         | carotenoids age. Would cause the yolks to eventually fade.
         | 
         | I just googled -- eggshells increase in permeability to oxygen
         | after the first week, so my guess is this is what you are
         | seeing!
        
         | Enginerrrd wrote:
         | This is totally correct in my experience also raising chickens.
         | Although, the old eggs from our chickens never got to be as
         | colorless as the store bought.
        
       | locallost wrote:
       | Color is very important for food. My favorite story is the one
       | [1] with wine tasting, where the same white wine was tasted twice
       | by the same people, in one case with tasteless red color added.
       | The taste was reported to be completely different. While it might
       | be contributed to wine tasting being total BS, my favorite part
       | of this study was that its author became a wine maker :-).
       | 
       | [1]
       | https://www.realclearscience.com/blog/2014/08/the_most_infam...
        
         | phonypc wrote:
         | The color of food and drink certainly has suggestive power, but
         | the popular conception of what that wine study shows, i.e. that
         | wine tasting is complete junk, is itself complete junk.
         | 
         | A reddit comment summarizes it best:
         | https://www.reddit.com/r/todayilearned/comments/4q6485/til_a...
        
           | locallost wrote:
           | I never said wine tasting was junk, but there is plenty of
           | baloney in the reddit post. The worst part is the claim the
           | author is not a scientist, merely an academic doing a study.
           | Was his white coat missing? He did not attend Science
           | University?
           | 
           | I also posted that the author is a wine maker, so it's clear
           | he doesn't view the wine world as junk. My take away from it
           | is that there's a lot going on in our head based on the input
           | from the senses, that things are not black and white, and
           | that it's difficult to rate things objectively because of it.
           | And that this is completely fine, since we are humans and not
           | machines, and if you can taste black currants in a wine and
           | this makes you happy, knock yourself out.
        
       | greggeter wrote:
        
       | hbarka wrote:
       | While we're at it, can we also talk about the use of glyphosate
       | aka RoundUp in our farms? It's routinely used before and after a
       | harvest in order to accelerate desiccation and allow the farmers
       | to have multiple yields in a single season. Dyeing egg yolks and
       | dying organs from RoundUp what have we become.
       | 
       | [1] https://investigatemidwest.org/2019/05/26/controversial-
       | pest...
       | 
       | [2] https://www.cornucopia.org/2017/10/glyphosate-use-
       | desiccant-...
        
       | partiallypro wrote:
       | You can feed chickens red pepper flakes and their yolk will
       | become darker and more orange in hue. Has no effect on taste,
       | it's just for looks.
        
       | hongloumeng wrote:
       | Not too long ago in China, consumers preferred duck eggs with red
       | tinted yolks. Market vendors would crack off the top half of an
       | egg and display its yolk, and consumers thought the redder the
       | better.
       | 
       | So, of course, farmers started feeding a carcinogenic dye called
       | Sudan Red directly to the ducks.
       | 
       | * http://www.china.org.cn/english/health/189567.htm
        
         | solarist wrote:
         | That's a perfect example of Goodhart's law.
         | 
         | https://en.wikipedia.org/wiki/Goodhart%27s_law
        
         | dotancohen wrote:
         | > Not too long ago in China...
         | 
         | And still happening in Europe and the United States today.
         | 
         | Canthaxanthin is very commonly added to farmed Salmon, to
         | change its natural colour from grey to pink. Known to cause eye
         | diseases in humans, it is also linked to several types of
         | cancer in humans, but not proven as a carcinogen.
         | 
         | And though Europe has banned the Azo food colourings, they are
         | still perfectly legal to add to food in the US. And though
         | their effects are mostly on children, it is specifically
         | childrens' foods and snacks to which these bright colours are
         | added.
        
           | NovemberWhiskey wrote:
           | > _Known to cause eye diseases in humans_
           | 
           | ... when taken in massive doses as a skin-tanning supplement.
           | As far as I know, there 's no evidence whatsoever of side-
           | effects in humans when eaten in the quantities typical to
           | those involved in produce like salmon/eggs.
        
           | [deleted]
        
           | technothrasher wrote:
           | > Europe has banned the Azo food colourings
           | 
           | Europe has indeed banned some Azo food colorings, however
           | canthaxanthin is not one of them, as far as I am aware. The
           | EU has evaluated the safety of it on multiple occasions and
           | found it safe to consume at the levels used in the food
           | supply.
           | 
           | > Known to cause eye diseases in humans
           | 
           | Extremely excessive intake of tanning pills containing
           | canthaxanthin was shown to cause accumulation of deposits in
           | the retinas of a small number of individuals. Once the intake
           | of pills was stopped, the condition completely cleared up in
           | all individuals effected.
        
         | [deleted]
        
         | [deleted]
        
         | ryanmercer wrote:
         | Turmeric has had similar issues, with some individuals adding
         | industrial lead chromate to improve the colors (and add to the
         | weight, as it is sold by weight)
         | https://www.washingtonpost.com/business/2019/09/28/turmeric-...
        
           | ineedasername wrote:
           | And if it was sold by volume they'd just be using some other
           | type of filler. Outside of rigorous regulation it's hard to
           | figure out how to fix this sort of thing. But then you end
           | can also end up with massive factory farms or meat processing
           | plants etc that can min/max the penalties against the
           | profits, not to mention corrupt inspections.
        
         | MichaelMoser123 wrote:
         | wasn't the social credit system supposed to fix this?
         | https://en.wikipedia.org/wiki/Social_Credit_System (i mean it
         | looks like a 'big brother' system, but it was introduced with
         | the objective of fixing abuses like this)
        
           | heftig wrote:
           | Do corporations and other juridical persons also get a social
           | credit score? This abuse was committed by a corp, not some
           | farmer.
        
             | woodruffw wrote:
             | One of the "nice" things about China's one-party and
             | nakedly authoritarian nature is that the corporate veil
             | doesn't really exist: if the Chinese government one day
             | decides that the CEO of a company deserves to have their
             | social credit measured against some set of civic outcomes
             | produced by their company, then there's nothing stopping
             | them from doing so.
        
         | inglor_cz wrote:
         | Chinese markets strike me as absolutely brutal.
         | 
         | I mean, there is always some theft, fraud etc. in any market
         | (one of the oldest written records of humanity is a customer
         | complaint about bad copper sold by a certain Mesopotamian
         | merchant called Ea-nasir in 1750 BC), but stuff like poisoning
         | your customers with Sudan Red, or adding melamine to yoghurt,
         | or frying food on gutter oil seems to always be reported from
         | China.
        
           | nigerian1981 wrote:
           | The fake Chinese eggs were the high point for me
        
             | joeman1000 wrote:
             | Just read about those [1]. I was struck that the
             | ingredients were similar to what's in Gaviscon:
             | 
             | - Sodium alginate
             | 
             | - Calcium carbonate
             | 
             | [1]: https://www.myrecipes.com/extracrispy/fake-chinese-
             | eggs-are-...
        
               | nigerian1981 wrote:
               | You've got to admire the ingenuity
        
           | azizsaya wrote:
           | Same goes with India as well. I have always wondered about
           | this, may be it is the trade-off between getting caught and
           | the sheer desperation to make money that tilts the moral
           | compass to act in unethical ways.
        
             | arcticbull wrote:
             | Interestingly the Germans also found some Sudan dies in
             | spices imported from India. [1]
             | 
             | [1] https://www.bfr.bund.de/cm/349/dyes_sudan_I_IV.pdf
        
             | sandworm101 wrote:
             | >> and the sheer desperation to make money that tilts the
             | moral compass
             | 
             | A very western sentiment. We often deride the quest for
             | profits, demonizing people who put profit ahead of
             | something more noble like safety. But in places like China
             | "profit" is life. China has seen starvation in living
             | memory. In countries without social safety nets a failed
             | business likely means utter destitution, very often leading
             | to physical violence. The people who run restaurants, and
             | certainly the people who work in them, are not chasing
             | profits because they want to drive nice cars. They are
             | chasing profits because they too want to keep eating.
        
               | sofixa wrote:
               | But doesn't getting caught poisoning customers result in
               | destitution too?
        
           | xbmcuser wrote:
           | China has moved from the 3rd world to the developed world in
           | just 30 years. Their laws and social development have yet to
           | catch up with their economic development. Most of the people
           | in any kind of power position are in their 50s-60s ie those
           | that grew up in a very harsh world. It will take another
           | 20~30 years for it to change.
        
           | Joeboy wrote:
           | I guess it was quite a long time ago now but https://en.wikip
           | edia.org/wiki/1985_diethylene_glycol_wine_sc...
        
             | inglor_cz wrote:
             | Wild. I was a kid in 1985, so not interested in wine yet,
             | though Austria is right next door.
             | 
             | There were several recent affairs in Europe with
             | adulteration of suspect booze in the black (or gray) market
             | with methylalcohol. That would fit right in.
        
           | Overtonwindow wrote:
           | Not just Chinese markets, but Chinese products today, such as
           | the cat food and melamine issue, and baby formula. Consumable
           | Chinese products should have a warning label
        
           | gordaco wrote:
           | This used to be common in parts of Europe as well. There is a
           | book called _From Poison Sweets to Counterfeit Coffee--The
           | Dark History of the Food Cheats_ , from the food journalist
           | Bee Wilson [1], which tells (among many other things) a lot
           | of stories about arsenic poisonings in 19th century London,
           | caused by the usage of certain red dyes in food. The saying
           | that certain regulations are written in blood comes from
           | these kinds of stories.
           | 
           | [1]: https://www.goodreads.com/book/show/2507738.Swindled
        
             | unsignedchar wrote:
             | Yes there was an extract in NYT comparting the issues with
             | baby formula in 2008 China with 1850s New York
             | 
             | https://www.nytimes.com/2008/09/30/opinion/30wilson.html
        
           | gbear605 wrote:
           | A lot of this was common in the US and Europe a hundred years
           | ago, but laws and changing culture have stopped it. Just look
           | at snake oil, or the many other "remedies". See, eg, " Down
           | and Out in Paris and London" by Orwell, where among many
           | other things he talks about how the restaurant kitchens in
           | early 1900s Paris were extremely gross and dangerous, but
           | because the front of the restaurants were clean, the
           | customers seemed happy.
           | 
           | "A customer orders, for example, a piece of toast. Somebody,
           | pressed with work in a cellar deep underground, has to
           | prepare it. How can he stop and say to himself, 'This toast
           | is to be eaten--I must make it eatable'? All he knows is that
           | it must look right and must be ready in three minutes. Some
           | large drops of sweat fall from his forehead on to the toast.
           | Why should he worry? Presently the toast falls among the
           | filthy sawdust on the floor. Why trouble to make a new piece?
           | It is much quicker to wipe the sawdust off. On the way
           | upstairs the toast falls again, butter side down. Another
           | wipe is all it needs. And so with everything."
           | 
           | China is at an interesting point because they've developed
           | economically so much in the last fifty years. Their culture
           | and law enforcement hasn't caught up yet while the internet
           | has, so this is shared with us.
        
             | elefanten wrote:
             | And yet none of those examples compare to consciously using
             | known poisons as a replacement for or additive to real
             | food. That's cynical brutality on another level.
        
               | kixiQu wrote:
               | How about preserving milk with formaldehyde?
               | 
               | https://www.pbs.org/wgbh/americanexperience/films/poison-
               | squ... https://allthatsinteresting.com/poison-squad-
               | harvey-wiley
               | 
               | One of the tricks here is that "known" poisons are the
               | same as "agreed-upon" poisons -- or that the definition
               | of "poison" isn't as clear as you might assume.
               | 
               | If one compares the US/Canada and EU restrictions of
               | additives with the assumption that the latter are
               | _founded,_ you 'd come to the conclusion that the only
               | thing North America must have more of than cynical
               | brutality is cancer. However, while I'm not going to say
               | they're right, there are typically plenty of folks in HN
               | comment sections happy to say that many of the EU's food
               | restrictions are ascientific pandering.
               | 
               | Everyone has _some_ intuitive threshold about what they
               | 'd consider reasonable and what they wouldn't, but they
               | don't always align. Acrylamide from roasting coffee?
               | https://www.nbcnews.com/news/us-news/california-judge-
               | rules-... Nitrates and nitrites are indisputably
               | poisonous as hell, so are cured meats out of bounds?
               | https://www.bbc.com/news/health-34615621
        
               | robocat wrote:
               | > formaldehyde
               | 
               | As a metabolic intermediate, formaldehyde is present at
               | low levels in most living organisms. Formaldehyde can be
               | found naturally in food up to the levels of 300 to 400
               | mg/kg, including fruits and vegetables (e.g. pear, apple,
               | green onion), meats, fish, crustacean and dried mushroom,
               | etc.
               | 
               | Ingestion of a small amount of formaldehyde is unlikely
               | to cause any acute effect. The main health concern of
               | formaldehyde is its cancer causing potential. The
               | International Agency for Research on Cancer (IARC)
               | considered that there was sufficient evidence for
               | carcinogenicity in humans upon occupational exposure via
               | inhalation. On the other hand, WHO in 2005 when setting
               | its Drinking Water Guidelines considered that there was
               | no definitive evidence for carcinogenicity upon
               | ingestion.
        
               | kixiQu wrote:
               | Well, sure. Here's the thing: with _anything_ , the dose
               | makes the poison -- and "low levels" and "small amount"
               | are pretty important phrases in those claims, right? (htt
               | ps://wwwn.cdc.gov/TSP/MMG/MMGDetails.aspx?mmgid=216&toxid
               | ...) People aren't talking about the amounts in _apples_
               | when they 're referring to e.g.
               | https://en.wikipedia.org/wiki/2005_Indonesia_food_scare
        
             | code_duck wrote:
             | I'm not sure much has changed in regard to the anecdote you
             | shared. Kitchens are under a lot of pressure to get food
             | out quickly and finish all of an order at the same time.
             | 
             | I worked at a restaurant in the 90s as my very first job,
             | and one day someone dropped a steak on the floor after it
             | was done. I said oh dear, I'll get another from the fridge.
             | The cooks told me no, just wash it off and serve it,
             | reasoning "If we bring out every else's meal and they guy
             | who ordered the steak has to wait 10 minutes, he'll be
             | mad". My guess was that he would be angrier to know that he
             | was served a steak that had been dropped on our filthy
             | floor and given the choice, would probably prefer to wait
             | for a different one.
        
               | supportlocal4h wrote:
               | Your anecdote sparked an old thought for me.
               | 
               | In your story, the customer would perceive the service as
               | inferior if their food was late. A cook, knowing that the
               | service isn't really inferior (there was just one little
               | snag), justifies a little action to put appearances back
               | closer to reality.
               | 
               | That last sentence is a study for me. I see it in
               | everybody including myself. Somehow we convince ourselves
               | that our ideal is the normal and the actual reality is an
               | aberation. Then we rationalize little efforts to hide the
               | aberation.
               | 
               | It can be hard to acknowledge the truth about ourselves
               | and accept the consequences. But it is very hard to
               | improve otherwise.
               | 
               | (At the same time we need to be careful of imposing
               | overly severe consequences for mistakes.)
        
               | yojo wrote:
               | My last boss worked at a sandwich shop in college
               | (Pasadena, CA). One shift he knocked over a 5 gallon
               | bucket of olives, which spilled all over the floor.
               | 
               | He was mortified, but the owner seemed unperturbed. He
               | handed him a broom and a dustpan and told him to get them
               | all back in the bucket.
        
             | oefrha wrote:
             | > how the restaurant kitchens in early 1900s Paris were
             | extremely gross and dangerous, but because the front of the
             | restaurants were clean, the customers seemed happy.
             | 
             | I heard a lot of restaurants in China these days, including
             | takeout outlets, make live video feeds of their kitchens
             | available online so that customers can be assured that the
             | kitchens are hygienic. Of course that doesn't tell you
             | about the quality of source materials.
        
               | dflock wrote:
               | Well, a video feed of _a_ kitchen, at least.
        
               | rciorba wrote:
               | I've ordered from such a place in Munich. The novelty
               | factor made it entertaining to watch and at some point I
               | could identify my order being prepared. Not sure how many
               | people you could deceive before you start to get called
               | out, if the feed was of a different kitchen
        
           | [deleted]
        
           | ndespres wrote:
           | Well that might be a concerted effort to keep your attention
           | turned away from all the similarly nasty things happening in
           | your own country. In my country I think about older examples
           | like the Swill Milk Scandal of the 1850s but more recent
           | efforts like "ag-gag laws" that make it a crime to document
           | the brutal conditions inside slaughterhouses and food
           | processing facilities. This isn't just a "China" problem.
           | 
           | https://en.m.wikipedia.org/wiki/Swill_milk_scandal
        
           | arcticbull wrote:
           | > ... but stuff like poisoning your customers with Sudan Red
           | 
           | I obviously am not in favor of using potentially carcinogenic
           | dyes in foodstuffs, but in the case of the minute quantities
           | of Sudan dies that would find their way into the eggs, I
           | think "poisoning your customers" is a touch strong. Poisoning
           | your ducks, maybe.
           | 
           | Sudan dies are listed under Directive 67/548/EEC [1] as a
           | Category III carcinogen. The description of that designation
           | is:                 Substances which cause concern for man
           | owing to possible carcinogenic effects but in respect of
           | which available information is not adequate for making a
           | satisfactory assessment. There is some evidence from
           | appropriate animal studies, but this is insufficient to place
           | the substance in Category II. [2, p.19]
           | 
           | My understanding is the studies on Sudan dies showed
           | potential carcinogenic activity in mice but not in rats. [3]
           | 
           | When the Germans did a risk assessment on imports of certain
           | spices from India with Sudan dies they said:
           | The assessment that the risk of cancer is probably very low
           | in the case of occasional consumption of foods with a low
           | level does not, however, mean that there is no risk at all.
           | [3]
           | 
           | Again, probably still shouldn't eat, but I think a little
           | perspective is healthy here too. You're not gonna die from
           | having a couple of red eggs.
           | 
           | [1] https://en.wikipedia.org/wiki/Directive_67/548/EEC
           | 
           | [2] https://ec.europa.eu/environment/archives/dansub/pdfs/ann
           | ex6...
           | 
           | [3] https://www.bfr.bund.de/cm/349/dyes_sudan_I_IV.pdf
        
       | komposit wrote:
       | This reminds me of something I saw on TV once where a farmer was
       | feeding his chickens lots of spicy red peppers. Made the yolk a
       | deep red and apparently spicy as well.
        
       | erk__ wrote:
       | This also means that goose eggs are very yellow since their diet
       | is nearly exclusively grass, at least when they are walking free.
        
       | poulpy123 wrote:
       | I wasn't aware that the red/orange leaves of autmns had their
       | color due to caroten !
        
         | WithinReason wrote:
         | This was my main takeaway :)
        
       | steeps wrote:
       | J. Kenji Lopez-Alt has a bit in his Food Lab book where he
       | explores the effect of yolk colour on taste. Paraphrasing, the
       | takeaway is that people generally perceive redder/deeper yolks as
       | more flavoursome, but if you remove this factor (with food
       | colouring, say), then people can't tell the difference. He
       | summarises this in a twitter thread: [1]
       | 
       | [1]: https://nitter.net/kenjilopezalt/status/1176542696724320256
        
         | agumonkey wrote:
         | Some french tv channel did a quick game test, asking a bunch of
         | students to sip colored soda and guess the flavour. Green was
         | mint, Red was strawberry, Yellow was citrus, they were all
         | strawberry. Surprising "reality".
        
           | bombcar wrote:
           | I've always wondered if part of the reason the "clear" craze
           | for sodas died off is that you didn't have the right signals
           | to tell you what it tastes like.
        
             | BenjiWiebe wrote:
             | What about canned soda? If drinking from a can it's pretty
             | hard to see what color the soda is, without making a point
             | of checking.
             | 
             | I wonder if the can color is then the signal?
        
               | 0ldskool wrote:
               | color is probably associated with certain flavors. For
               | most people our eyesight is used to identify things more
               | so then other senses. If you don't see the color you
               | probably have to work slightly harder to identify what is
               | being eaten. How many people have a tongue so accurate
               | they can eat/drink food blindfolded and identify it?
        
           | nanidin wrote:
           | A food scientist came to my high school and did a similar
           | demonstration with us - except with different flavors of
           | koolaid. Students reported red as cherry, purple as grape ...
           | but they were actually the same flavor and only differed in
           | color.
        
           | pessimizer wrote:
           | The same thing is true about red and white wine. Color it all
           | red and no one can tell the difference.
        
             | [deleted]
        
             | scoot wrote:
             | I'm sorry, but that just isn't true. No doubt some wines
             | cross over, but the tannins present in much red wine are
             | notable by their absence from pretty much all white wine.
        
               | fullstop wrote:
               | Yes, this. Red and white don't taste that similar to me.
               | 
               | My nose isn't great, especially compared to my wife's,
               | but I could tell you 100% of the time if I was tasting
               | red or white while blindfolded.
        
               | aembleton wrote:
               | Would you be able to tell if you weren't blindfolded and
               | it was white wine that had food colouring added to it so
               | that it appeared as red?
               | 
               | Would your sense of taste overpower what your eyes were
               | telling you?
        
               | fullstop wrote:
               | I absolutely could do this, even with food coloring.
        
           | powersnail wrote:
           | We did an experiment in class, where we drank sodas
           | blindfolded. Not only did we fail to distinguish Coke Cola
           | and Pepsi, we couldn't even tell sprite from coke!
           | 
           | I would have never believed that they taste so incredibly
           | similar without the experiment.
        
         | dzhiurgis wrote:
         | But is that because of their past experience i.e. buying
         | premium eggs vs cheap eggs before trained them into a bias?
        
           | simsla wrote:
           | It's not just colour acting as an equaliser, but people being
           | unable to distinguish when you take yolk colour out of the
           | equation entirely.
           | 
           | From the linked thread:
           | 
           | > "blindfolded tasters couldn't really tell the difference
           | between fresh pastures backyard eggs and 2-week old
           | supermarket eggs"
        
             | px43 wrote:
             | Who were the participants? Random people off the street, or
             | professional tasters who actually pay attention to what
             | they're eating?
        
               | upsidesinclude wrote:
               | Hard to believe that discerning people exist!
               | 
               | It's the same as the claims that no one knows they are
               | sick for weeks before symptoms. If you're unhealthy and
               | living with that, yeah, I guess you might not notice
               | feeling off
        
         | wirthjason wrote:
         | For people into this kind of stuff check out "Taste: What
         | You're Missing" from food scientist Barb Stucky.
         | 
         | It's a pop science collection of stores about measuring tastes
         | and food pleasure. I remember reading a chapter on texture and
         | how one of the founders of Ben and Jerry's ice cram, Ben
         | Chohen, doesn't have a sense of taste. When you can't taste
         | anything food, ice cream in particular, becomes very boring
         | after the first couple bites. So the sense of pleasure comes
         | from different textures rather than different flavors. That's
         | why B&J's ice cream has so many chunky ingredients.
         | 
         | http://barbstuckey.com/the-shop/
        
         | taneq wrote:
         | Reminds me of the studies which show that wine connoisseurs are
         | describing the colour, not the taste, of the wine. I've always
         | found this highly suspect because I guarantee anyone who drinks
         | wine regularly could fairly accurately judge what price bracket
         | a wine came from, at least within a factor of 2-3. You could
         | mistake a $10 wine for a $15 wine or vice versa but a $50 wine
         | is noticeably different.
        
           | fullstop wrote:
           | I have had some excellent $10 bottles of wine which hold
           | their own against the $50 bottles.
        
           | robocat wrote:
           | I suggest you organise this with your friends - it is a lot
           | of fun and you can enjoy an adult science experiment.
           | 
           | If you do want to try it, then two suggestions: 1. try to
           | have some way to blind yourself from the results, 2. Make a
           | decision whether you want everyone to get plastered or not.
           | 
           | I did this a few years ago and it was heaps of fun, but I
           | wasn't careful about amounts so we all got trolleyed by
           | mistake.
        
             | [deleted]
        
           | jjeaff wrote:
           | That is not in line with the blind taste tests I have seen.
           | The vast majority of people not only can't pick out the more
           | expensive wine, they also tend to prefer the cheaper wines.
        
         | kuhewa wrote:
         | There's a legitimate reason what one might hold that
         | impression, although I'm not sure to what degree it is at play.
         | A home grown chook that gets a lot of its diet from foraging
         | insects and eating various scraps probably will have a more
         | flavorful, _eggier_ egg and due to the carotenes in the diet
         | the yolk will be redder.
         | 
         | Of course, you can get the same orange yolk from adding
         | caroteens to the feed of an industrially grown layer's feed
         | with none of the associated other differences
        
         | Mikeb85 wrote:
         | I mean, you can definitely tell the difference between, say, a
         | mass-produced egg and one from a naturally raised chicken. The
         | latter often has more orange-y yolks. That being said, some
         | large-scale producers add stuff to the diet to get more orange
         | yolks and some naturally raised eggs aren't super orange so
         | yes, colour alone doesn't mean much.
        
           | TedDoesntTalk wrote:
           | It's almost as if you did not read the article, especially
           | the last two sentences.
        
             | Mikeb85 wrote:
             | Almost like I was responding to a comment, not the article
             | itself... That's why there's levels to comments.
        
       | mintone wrote:
       | A brand in the UK called Clarence Court started producing a range
       | of eggs (maybe a decade ago?) that have an intensely orange yolk
       | [1] and this became a real differentiator, in some ways an
       | indicator of quality. I know when an egg is Clarence Court in a
       | restaurant for instance (and have confirmed numerous times). They
       | are also delicious eating.
       | 
       | The effect is so profound that supermarket own brands have now
       | also started producing similarly richly-orange-yolked eggs.
       | 
       | [1] https://pbs.twimg.com/media/EAe_TN_WsAAyQ9-.jpg:large
        
         | Bluecobra wrote:
         | In the US there is a brand called Happy Egg with a dark orange
         | yolk. They are my preferred brand now, because who wants to buy
         | unhappy eggs? They are the only one I can find with dark orange
         | yolk.
        
           | wincy wrote:
           | Happy Egg Co. eggs are my favorite! So much so that I emailed
           | them during the early pandemic thanking them for making such
           | amazing eggs.
           | 
           | Have you tried the Heritage breed and their other lines of
           | eggs? I've found the cheaper eggs have the same dark orange
           | yolk but the flavor of the Heritage breed eggs is absolutely
           | divine. It's ruined other eggs for me.
           | 
           | Interestingly Vital Farms used to have eggs that tasted great
           | but perhaps as they got more popular and sourced eggs from
           | more places, their eggs quality dropped and I stopped buying
           | them.
        
           | geitir wrote:
           | Happy egg are my favorite as well. I have to say though, I
           | tried their organic line and the yolks are indeed not as
           | orange and a bit more runny. I actually buy the standard line
           | for this reason
        
         | bencollier49 wrote:
         | I noticed the supermarkets producing copycats and became
         | suspicious of the method by which they achieved the colour.
         | There's something qualitatively different about the darkened
         | yolk in the Clarence Court eggs, and it makes me wonder about
         | additives, I guess they're just adding caretinoids to the feed.
        
           | andrewnicolalde wrote:
           | Yes! I completely agree. The yolks of Clarence Court-alikes
           | just don't feel as "rich", whatever that means, and I can
           | readily tell the difference when having yolk-heavy food like
           | egg soldiers, for example.
        
             | bencollier49 wrote:
             | English contingent on HN here going peak middle-class. :-)
             | 
             | Speaking as one of them!
        
               | traceroute66 wrote:
               | > English contingent on HN here going peak middle-class
               | 
               | Put the Daily Mail down right this instant !
        
               | yaseer wrote:
               | "I can readily tell the difference between Clarence court
               | eggs and copycats..." is an extract from 'Middle Class
               | British Problems' if ever I heard one! :)
        
         | swarnie wrote:
         | I buy these regularly but i always though it was down to the
         | specific breed of chicken, in Clarence Court's case the use of
         | a Burford Brown.
        
       | wirthjason wrote:
       | I generally could care less about the color of an egg yolk but
       | there's one exception: the egg in ramen. It's not that it tastes
       | particularly better, marinating anything in soy sauce for a
       | couple days will make it taste delicious. It's often said we eat
       | first with our eyes. I enjoy the contrast of colors. The dark
       | red/orange looks much more appealing than a pale yellow yolk
       | floating in a bowl of soup.
        
       | guilhas wrote:
       | Quality of the food and treatment of the animal? Generally home
       | grown chickens are more colored than supermarket
        
       | cpr wrote:
       | Growing up as a 'white bread' kid in the 60's and 70's, I had
       | never had a farm fresh egg, nor local hand-made bacon.
       | 
       | So you can imagine my delight when, exactly 40 years ago today on
       | our honeymoon, we stayed with some friends of my parents on the
       | Maine coast (Brooklin, in Penobscot Bay, on a little inlet called
       | Herrick's Bay -- just visited there again last week) and they
       | provided fresh local eggs and bacon for our breakfasts. It was
       | truly ambrosial!
       | 
       | (Of course, being in the first days of our honeymoon, in a
       | romantic little converted boathouse out over the water might also
       | have had something to do with it.)
       | 
       | But I can attest that fresh eggs are night and day compared to
       | store bought.
       | 
       | (Of course, we're spoiled now, getting our eggs from friends who
       | raise free-range chickens, so fresh eggs are just table stakes.)
        
         | Sebguer wrote:
         | I'd think you'd only get table steaks if your friends also had
         | cows.
         | 
         | On a serious note, it's kind of wild how horrible modern
         | chickens are. Great twitter thread I saw yesterday:
         | https://twitter.com/MrSollozzo/status/1515324097223225345
        
       | glandium wrote:
       | Similar answer to the question "why is salmon pink/orange?".
        
       | tacticaldev wrote:
       | Just another example of how Organic (clean food) propaganda isn't
       | based in science. I can't tell you how often I hear cooks swear
       | by their redish, darkwe yolk eggs for having some kind of magic
       | properties. Interesting article, good read.
        
         | throwamon wrote:
         | Not disagreeing that there's plenty of propaganda and bad
         | science out there, but I'm not sure why you chose to single out
         | "organic propaganda". The article talks about the industry
         | artificially adding substances to the yolk, which afaik is
         | precisely what organic food people are against. Also,
         | carotenoids may not be magic, but it's important to consume
         | them.
        
         | nemo44x wrote:
         | I'd probably use the term "marketing" rather than "propaganda".
        
         | tomxor wrote:
         | > I can't tell you how often I hear cooks swear by their
         | redish, darkwe yolk eggs for having some kind of magic
         | properties.
         | 
         | To complicate matters, psychology can play a significant role
         | in the material result when making things. It's like the
         | placebo effect but for the engineer, the cook, the mechanic,
         | the designer etc.
         | 
         | Obviously cooking is about more than the ingredients, they are
         | important, but timing and intuition play a big role, the latter
         | can be undermined if they start without believing in the
         | ingredients... this applies to programming just as much as
         | cooking.
        
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