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Simple mix of soap and solvent could help destroy ‘forever chemicals’

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Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#51

Post by manytree »

ackfoobar wrote: post #40
pomian wrote: post #12

Earlier quoted context omitted.

Nothing beats cast iron. They aren't hard to take care of.(In spite of the rhetoric.) Actually easier, once you get a good surface on them. Pots, frying pans, woks, etc. They work very well. The most important thing is to give them time to heat up. Once they are, they hold the heat very well, so can cook at any temperature.

I prefer carbon steel more. They heat up faster and are smooth (unlike a lot of cast iron pans which are rough). But both works well enough.

Second carbon steel. Excellent pans, I don’t worry about seasoning too much - hit with steel wool and hit water when necessary.

Still very little sticks if you use them enough.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#52

Post by ars »

radicalbyte wrote: post #26
ars wrote: post #16

Earlier quoted context omitted.

What bad ways? Teflon is not harmful. Teflon is not the same as PFAS, and Teflon cookware does not leech any PFAS into food. See my other reply: https://news.ycombinator.com/item?id=32515717 And to answer your question, ceramics sometimes have heavy metals to get bright colors (cadmium mostly). Make sure to buy from a reputable manufacturer.

My Teflon pans are all slightly scratched. When they scratch some material comes loose and is removed from the pan. Where is that material?

You ate it, and it won't hurt you in the slightest. Teflon is utterly inert in the body.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#53

Post by philipkglass »

pessimizer wrote: post #35
ars wrote: post #9

Earlier quoted context omitted.

High temperatures do not bother Teflon, there's no reason to dispose of it because of that. According to the EPA Teflon frying pans do not leech any PFOA into food, that's not where people are exposed. I've noticed that for some reason a ton of people think they get exposure to PFOA from cookware, and that's simply not true. PFOA exposure mainly comes from waterproofing coatings, slippery coatings (like the bottom of…

I don't know what's released from Teflon pans at high heat, but Teflon kills birds. I know this because I killed two birds by forgetting about a pan I was warming up. Wasn't enough to make the pan look any different; was enough to instantly kill the birds. https://www.teflon.com/en/consumers/teflon-coatings-cookware...

I believe that the chemical primarily responsible for bird toxicity from PTFE pyrolysis is perfluoroisobutene:

https://en.wikipedia.org/wiki/Polymer_fume_fever

https://en.wikipedia.org/wiki/Perfluoroisobutene

Although acutely toxic, this substance is not a persistent "forever chemical" because there are multiple mechanisms that rapidly degrade it in the environment:

https://pubchem.ncbi.nlm.nih.gov/compound/Perfluoroisobutyle...

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#54

Post by ars »

Dan_- wrote: post #46
ars wrote: post #14

Earlier quoted context omitted.

> but it's not like the final product (Teflon) is safe to ingest either Sure it is. I don't think a less toxic material than Teflon even exists. It's toxicity is comparable to water. The LD50 of Teflon is > 11,280 mg/kg. Water by comparison is 90,000 mg/kg. They were not able to measure the exact toxicity because it's impossible to eat so much.

Bullshit. There is “toxic” and there is “causes cancer, even outside California, reduces fertility, and negatively affects fetal development.” Just because something doesn’t kill you immediately does not mean it isn’t harmful.

Teflon is not harmful. Period. It doesn't cause ANYTHING in the body. It's about the most inert material that you can possibly ingest.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#55

Post by bobthepanda »

manytree wrote: post #51
ackfoobar wrote: post #40

Earlier quoted context omitted.

I prefer carbon steel more. They heat up faster and are smooth (unlike a lot of cast iron pans which are rough). But both works well enough.

Second carbon steel. Excellent pans, I don’t worry about seasoning too much - hit with steel wool and hit water when necessary. Still very little sticks if you use them enough.

Also heft. Cast iron pans are thick and heavy, and can kind of be a hassle to move.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#56

Post by klabb3 »

ars wrote: post #14
Teknoman117 wrote: post #5

Earlier quoted context omitted.

That's honestly one of the things I wish we could get a handle on. Company gets sued for using and hiding the danger of a compound they learned fairly quickly was toxic. Goes and invents another compound and switches to it without having to prove its safety. After it becoming public that they were intentionally hiding dangers for a half century, I feel we should take away their ability to be given the benefit of the…

> but it's not like the final product (Teflon) is safe to ingest either Sure it is. I don't think a less toxic material than Teflon even exists. It's toxicity is comparable to water. The LD50 of Teflon is > 11,280 mg/kg. Water by comparison is 90,000 mg/kg. They were not able to measure the exact toxicity because it's impossible to eat so much.

Is LD50 a meaningful measurement for biopersistent and accumulated compounds? It seems like it would be quite useless, or worse, misleading.

I recall that large blobs of mercury was used as a homemade remedy for stomach issues which turned out to not be a great idea for obvious reasons, although it's LD50 would probably have been similarly high.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#57

Post by junkypuppet »

samwillis wrote: post #6

Slightly off topic, I’m keen to dispose of our Teflon frying pan. Does anyone have a good recommendation for an alternative, ideally one that doesn’t take too much “maintenance”? We also have a Teflon milk pan but that is never used at a high tempriture so I’m less concerned about that.

Some brands like Our Place[1] and Caraway[2] sell specifically non-toxic cookware

[1]https://fromourplace.co.uk/

[2] https://www.carawayhome.com/

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#58

Post by arcticbull »

philipkglass wrote: post #53
pessimizer wrote: post #35

Earlier quoted context omitted.

I don't know what's released from Teflon pans at high heat, but Teflon kills birds. I know this because I killed two birds by forgetting about a pan I was warming up. Wasn't enough to make the pan look any different; was enough to instantly kill the birds. https://www.teflon.com/en/consumers/teflon-coatings-cookware...

I believe that the chemical primarily responsible for bird toxicity from PTFE pyrolysis is perfluoroisobutene: https://en.wikipedia.org/wiki/Polymer_fume_fever https://en.wikipedia.org/wiki/Perfluoroisobutene Although acutely toxic, this substance is not a persistent "forever chemical" because there are multiple mechanisms that rapidly degrade it in the environment: https://pubchem.ncbi.nlm.nih.gov/compound/Perfluoro…

While that's fair your link suggests it's found its way into schedule 2 of the chemical weapons convention.

> Perfluoroisobutene is quite toxic with an LCt = 880 mg⋅min⋅m−3 (mice).[1] It is a Schedule 2 substance of the Chemical Weapons Convention.

I don't know about you but I try and keep my ricin away from my breakfast foods. It is however reassuring that it'll be degraded in the environment.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#59

Post by tetetetetete »

samwillis wrote: post #6

Slightly off topic, I’m keen to dispose of our Teflon frying pan. Does anyone have a good recommendation for an alternative, ideally one that doesn’t take too much “maintenance”? We also have a Teflon milk pan but that is never used at a high tempriture so I’m less concerned about that.

I bought a cast iron thinking it would be a pain. its really not. they have came a long way. you can treat it like any other pan (besides being heavy) - you can use soap to clean it. - Dont get me wrong. treating it correctly will make it last a life time. i just store mine in the oven when ive finished washing it.

Re: Simple mix of soap and solvent could help destroy ‘forever chemicals’

#60

Post by Jeff_Brown »

gtvwill wrote: post #36
pomian wrote: post #12

Earlier quoted context omitted.

Nothing beats cast iron. They aren't hard to take care of.(In spite of the rhetoric.) Actually easier, once you get a good surface on them. Pots, frying pans, woks, etc. They work very well. The most important thing is to give them time to heat up. Once they are, they hold the heat very well, so can cook at any temperature.

Geez https://www.solidteknics.com/ They make some nice stainless and iron gear :) no joints either so nothing to break over time.

Nothing but the bank.
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