Ask Lemmy
A Fediverse community for open-ended, thought provoking questions
Rules: (interactive)
1) Be nice and; have fun
Doxxing, trolling, sealioning, racism, toxicity and dog-whistling are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them
2) All posts must end with a '?'
This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?
3) No spam
Please do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.
4) NSFW is okay, within reason
Just remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com.
NSFW comments should be restricted to posts tagged [NSFW].
5) This is not a support community.
It is not a place for 'how do I?', type questions.
If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.
6) No US Politics.
Please don't post about current US Politics. If you need to do this, try !politicaldiscussion@lemmy.world or !askusa@discuss.online
Reminder: The terms of service apply here too.
Partnered Communities:
Logo design credit goes to: tubbadu
view the rest of the comments
Don't know much about them.
That's the problem, the main people who do are the companies profiting. Something something conflict of interest
Teflon, see my other comment.
The sources are more understood than the consequences.
https://en.wikipedia.org/wiki/PFAS
TL;DR - Teflon, plus other chemicals, but particularly Teflon
Isn't Teflon itself fine though? My understanding was it was the chemicals used during manufacturing of Teflon that were the problem.
You can also get some ill effects if you exceed temp limits
Teflon itself is technically "fine" if you ignore that it's a forever chemical on its own. The chemicals used in the manufacturing, and the chemicals used to make a notoriously non-stick material stick to things are the big issues.
But like the other commenter said, even Teflon, despite its hydrophobic and non-stick properties, eventually wears out and spreads micro particles everywhere.
Everything wears out, regardless of temperature. Sure Teflon lasts a good long time as long as certain temperatures aren't exceeded, but even at room temperature/dishwashing temperature, particles of those molecules are still gonna wear off, and they don't just randomly vanish.
What's that stink you smell out of your vacuum cleaner? Well yeah, lots of dust and dead skin cells and such, but also all the other toxic debris gradually wearing away from our household items and whatnot..
This is about right. Teflon (PTFE) itself is mostly harmless to humans because you aren't likely to consume large enough amounts or small enough particles of Teflon for it to enter your bloodstream.
Other PFAS like PFOA, PFOS, PFHXS, and PFNA, which are the kind you would find used to coat the inside of a popcorn bag to keep the butter off the bag, are commonly found in human blood and have been linked to negative health outcomes in humans.
It's on all your outer wear and when it rains it goes straight into your local water system where you end up drinking it.
Also in fire suppressors.
Dark Waters - Democracy Now
https://m.youtube.com/watch?v=fZDmovshipc
https://newsinteractives.cbc.ca/features/2025/pfas-canada-map/
https://www.ewg.org/interactive-maps/pfas_contamination/
Here's a Veritasium deep dive (54min) on PFAS and their history. I thought I knew about PFAS, then this video taught me more:
https://www.youtube.com/watch?v=SC2eSujzrUY
Thank you!