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Have a look at this Ted-ed video [0]. What they basically say is that Teflon is not dangerous in itself, what is dangerous is the product they use to glue it to

• throwaway290 4y ago
  If manufacturer has convinced regulators that Teflon isn't dangerous just because the danger is in something that always has to be used with Teflon and not Teflon itself, surely that's criminal?
  • lazide 4y ago
    Only if it’s still present in the final product. It’s not uncommon in chemistry for two very reactive elements/compounds to combine into a molecule that is very stable and relatively benign. Sodium and Chlorine == table salt, for instance. Another example - Aluminum is pretty safe to be around, especially if it’s anodized. Anodized aluminum is even perfectly safe for use as a pan for cooking pretty much any food. Non-anodized is decently safe, just don’t use it with acidic foods. It’s common in large commercial cookware, though stainless is steadily replacing it. You really don’t want to be exposed to the chemicals used to refine aluminum or anodize aluminum though, as they include fluorine gas, chromic acid, etc. Same with titanium, stainless steel (albeit stainless generally doesn’t need a secondary coating), etc. [https://en.m.wikipedia.org/wiki/Hall–Héroult_process https://en.m.wikipedia.org/wiki/Hall–Héroult_process] [https://en.m.wikipedia.org/wiki/Hoopes_process https://en.m.wikipedia.org/wiki/Hoopes_process] [https://www.anoplate.com/finishes/anodizing/ https://www.anoplate.com/finishes/anodizing/]