No, this isn’t a cast iron thing. Using stainless pans, you can get nonstick effects that, in my experience, far outperform Teflon anyway. The process is called “spot seasoning.” I have cooked crispy, cheesy rice noodles with eggs with zero sticking.
I love my cast iron pans, but stainless is my daily go-to. Added bonus: use 100% copper wool to clean your stainless pan. The copper-coated wool at most grocery stores is problematic; you might get a few uses out of the coated garbage and then it starts shedding metal bits.
PFOA is one of the most prominent forever-chemicals and has polluted every single living creature on earth (including you). PFTE is another one.
PFOA causes tumors and has been found in 100% of the places (including living creatures) that is has been tested for. Every human, every animal, every river, every forest, every senior, every newborn.
The real “tinfoil hat” is how we let them get away with it. Oh? They had money and were in America? You don’t say.
PFOA was banned 10 years ago in the US and 20 years ago in the UK.
Any evidence that PFTE is harmful to that level?
PFOA was banned, but PFOS and other very-slightly-different forever chemicals are not banned, therefore get around those regulations due to that technicality. Also, the current US administration is looking into removing a lot of those regulations.
Teflon itself cannot penetrate your cells and actually do leave your body without harming you in the long run. However other forever chemicals do add up and cause cancer. Check video from Veritassium who imo explained it very well. https://www.youtube.com/watch?v=SC2eSujzrUY