Re:Teflon is still toxic to birds
by amluto on Sunday November 05, 2023 @12:37PM
(#38153384)
I’ve never heard of an actual granite pan. You surely mean a metal pan coated with a combination of silicone-ish things and silica, and maybe the silica is derived from granite.
Sadly, it seems that some of these things still contain potentially nasty highly fluorinated compounds. Here’s a patent for such a thing:
Hmm, the “FAS” additive in the outermost layer has a perfluorinated C6 chain. Whoops. I wonder whether this is better or worse than PTFE. At least intact PTFE ought to be harmless. PFHxA is not so wonderful:
Sadly, it seems that some of these things still contain potentially nasty highly fluorinated compounds. Here’s a patent for such a thing:
https://patentimages.storage.googleapis.com/6d/25/ca/9ff2bbd...
Hmm, the “FAS” additive in the outermost layer has a perfluorinated C6 chain. Whoops. I wonder whether this is better or worse than PTFE. At least intact PTFE ought to be harmless. PFHxA is not so wonderful:
https://en.m.wikipedia.org/wiki/Perfluorohexanoic_acid