Yep. Read all about it here: BBC News - PFAS: Possible breakthrough to destroy harmful 'forever chemicals' https://www.bbc.co.uk/news/science-environment-62561756 TLDR: sodium hydroxide (a common ingredient in soap) attacks PTFE (Teflon) and other PFA compounds, causing them to break down into inert substances. As for Teflon coated blades? Studies* have shown that one shave removes all Teflon from the blade edge. Make of that what you will. (And yes, this has been known for a very long time). *photos from an electron microscope.
Very interesting. I must add though, "soap kills PFAs" doesn't have the same ring as "soap kills germs"
Sounds like the stories they put out on slow news days. Sodium hydroxide is used in the process of making soap. But once it reacts with the other ingredients (fats & oils) it changes chemically and is no longer sodium hydroxide. So there should be none, in your soap, when you actually wash a pan with it. What is really bad for teflon is just plain wear & tear. Non-stick coatings get less slick with time & use. That's why I use cast-iron (for cooking), which gets more slick with time & use. As for blades, the coating has to be fairly thin, so the likely cause of wear & tear is just plain old friction.
Same here. I have some enameled cast-iron & one All-Clad skillet, for stuff that is too acidic for the cast-iron. (E.g. tomato sauce, lemon chicken.) But for omelettes, biscuits, pan-fried chicken or pork chops, you just can't beat cast iron.
