For a deep dive into the world of fluoropolymers (Teflon etc.) and their breakdown products: https://pubs.acs.org/doi/10.1021/acs.est.0c03244 https://pubs.acs.

For a deep dive into the world of fluoropolymers (Teflon etc.) and their breakdown products: https://pubs.acs.org/doi/10.1021/acs.est.0c03244 https://pubs.acs.org/doi/10.1021/acs.est.0c03244 > "We here distinguish between fluoropolymer substances, fluoropolymer products, and fluoropolymers in finished articles. A fluoropolymer substance such as PTFE, FEP, and PFA is a material of known chemical structure. A fluoropolymer product is the actual material produced and sold by a chemical manufacturer (e.g., Chemours, Solvay, Daikin, Asahi Glass, etc.), it comes in different grades (e.g., Teflon-granulate, Teflon-fine powder, etc.), and may contain impurities from the production process. These fluoropolymer products are sold to manufacturers of finished articles (e.g., PTFE tape, waterproof clothing with a PTFE membrane, PTFE-coated cookware, etc.) who incorporate the fluoropolymer products in their finished articles. The distinction is important, as there are many different processes of making fluoropolymer products..." TLDR: The authors generally conclude consumer products made with fluoropolymers are going to leach PFAS & similar eventually via waste disposal, and suggest restricting use to closed-loop industrial processes (where fluoropolymer plastics are often used to contain highly corrosive substances in chemical and pharmaceutical manufacturing processes).