Don't know exactly but according to the website all nonstick layers may contain PTFE in compliant with existing food legislations. All surfaces are PFOA and BPA. Hope this helps you.

The question has already been asked and answered several times, but for some strange reason they are always deleted...

Unfortunately, I don't know. But what I do know is that my grandfather ate from tin pans and the floor - and lived to be 105 years old.