Most people don’t set out to buy non-toxic cookware. They read one headline about PFAS in nonstick pans, look down at their scratched-up Teflon skillet, and suddenly feel like they need a chemistry degree to buy a frying pan. Traditional nonstick coatings are made with PFAS, PFOA, or PTFE, so-called “forever chemicals” that can break down when a pan gets ...