[HN Gopher] I was right about dishwasher pods, and now I can pro...
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I was right about dishwasher pods, and now I can prove it [video]
Author : hnaccount_rng
Score : 16 points
Date : 2025-11-04 20:16 UTC (2 hours ago)
(HTM) web link (www.youtube.com)
(TXT) w3m dump (www.youtube.com)
| 383toast wrote:
| summary:
|
| The creator argues that most dishwashers are designed to use a
| pre-wash dose and a main wash dose of detergent, a fundamental
| often ignored by single-dose pods, and presents independent ASTM
| testing confirming the new powder matches or exceeds the
| performance of a leading premium pod. The video also features a
| detailed demonstration using temperature logging and peanut
| butter to stress the importance of purging cold water from the
| hot water supply line before running a dishwasher, particularly
| in North America, to ensure the water reaches the optimal
| enzymatic temperature needed for effective cleaning. This is
| further reinforced by showing how adding pre-wash detergent
| dramatically improves the initial cleaning phase, especially with
| fats and oils.
| suprjami wrote:
| Thanks for the summary.
|
| American dishwashers don't have their own heater? All
| dishwashers I've seen in Australia only have cold water supply.
| midnitewarrior wrote:
| They do, but they are generally confined to 10 amps, so they
| do not heat quickly.
| Rebelgecko wrote:
| American dishwashers are typically hooked up to hot water.
| Some will have heaters but they're not that powerful and they
| may only run for the main wash cycle
| devilbunny wrote:
| They do. I didn't realize this until my natural gas supply
| company decided to replace my meter on a Friday. Without
| alerting me ahead of time so that I could, you know, _plan_
| to be gone while my house had no hot water.
|
| Whenever natural gas supply is turned off in the US, for any
| reason, only the gas company can turn it back on. And they
| can't do so if there's a leak at all. You have to call a
| plumber to come out, detect the leaks, and fix them. _After
| that_ , you can call the gas company to come back out (but
| not on a weekend) to turn it back on. And a same-day request
| for service requires someone to be home ALL DAY after it's
| called in.
|
| And this is how I ended up showering at work for three days
| that week after not having had one over the weekend.
| vel0city wrote:
| A dishwasher cycle is usually only going to run for a
| specific period of time. Its more effective it if starts that
| time closer to the proper temperature rather than relying on
| waiting for the heater to get the temperature up to that
| time. Especially on the pre-rinse cycle, where the heater may
| or (probably) many not engage.
| reaperducer wrote:
| _American dishwashers don 't have their own heater?_
|
| Some do, some don't.
|
| The ones that do vary in ability by overall dishwasher
| quality.
|
| The ones that don't are hooked up to the kitchen's hot water
| line.
|
| This is considered more energy efficient because a home's hot
| water heater (whether electric, gas, or another fuel) is
| better at heating the water in a bulk capacity than a tiny
| heater in the dishwasher.
|
| The downside is that the cold water between the big water
| heater and the dishwasher has to be purged first for it to be
| really effective. If your hot water heater is in the other
| side of the wall, no problem. If it's six rooms away,
| problem.
| WheatMillington wrote:
| Hot water from the house supply isn't that hot though? My
| dishwasher gets MUCH hotter than the hot water supply...
| and I don't think the heater is "tiny" I think it's a
| rather substantial element. The dishwasher also doesn't
| need to heat up a "bulk" amount of water, just the amount
| of water used for washing the current load of dishes.
| reaperducer wrote:
| _Hot water from the house supply isn 't that hot though?_
|
| Depends on how you have it set. My current and previous
| hot water heaters had thermostats which permitted
| adjusting the temperature.
|
| They also had warning labels on them about scalding
| water. If it's hot enough to scald, it's hot enough.
|
| _The dishwasher also doesn 't need to heat up a "bulk"
| amount of water, just the amount of water used for
| washing the current load of dishes._
|
| If you're washing dishes and someone is, or has recently,
| taken a shower; or someone is, or has recently, done
| laundry; or someone is, or has recently shaved or done
| any of the other dozen things that draw from the hot
| water heater, then the water is already hot and available
| and doesn't need to be heated all the way from cold by
| the dishwasher. A properly insulated hot water heater can
| retain heat for quite some time.
| WheatMillington wrote:
| Same in NZ, never seen a dishwasher with a hot water
| connection.
| RealityVoid wrote:
| I've found it harder and harder to find powder dishwasher
| detergent in my country. I think they intentionally pull them off
| the market, I used to buy a large Finish container and now I can
| barely find a place that sells _any_ sort of dishwashing powder.
| ErroneousBosh wrote:
| I wonder if that's why my now something like nearly 40-year-old
| dishwasher is so bad for leaking, on certain cycles? Maybe the
| pods foam up too much, because it seems hell of a foamy inside.
|
| At some point, I'll maybe post up the pics of repairing the door
| hinges - previously it was leaking badly because the chunky metal
| hinges had cracked and bent, pushing the door up enough to not
| squash the bottom lip seal. Unobtainable parts now, but if you
| have a welder...
|
| If you don't use a JTAG cable and a MIG welder on the same
| project in the same day, can you really call yourself "full
| stack"?
| smileysteve wrote:
| At 40 years, there is an expectation that the rubber and most
| plastic components have become embrittled. The hinges likely
| only wore out after the spring had reduced function (and lack
| of lubrication)
|
| After your weld, I hope you consider replacing all rubber with
| silicone, and add lubrication to at least an annual list.
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