ELI5 Non-stick Pans - are they safe?

Why was there a sudden change in Teflon plans in 2015? Are newer versions of Teflon safe? What is the chemical used to make Teflon that is in the bloodstream of 99.7% of Americans?

... We explain like i'm five!

Thank you to the r/explainlikeimfive community and in particular the following users whose questions and comments formed the basis of this discussion: dj_orka99, thebiga1806, doctormodalus, chem_equals, cicya, twatical, d2nekon and tracygee

To the ELI5 community that has supported us so far, thanks for all your feedback and comments. Join us on Twitter:

https://www.twitter.com/eli5ThePodcast/

or send us an e-mail:

[email protected]