PFOA free signifies that it was made without using the man-made chemical PFOA in the manufacturing process. Polytetrafluoroethylene (PTFE), also known as Teflon, and perfluorooctanoic acid (PFOA), which is used in the manufacturing process of Teflon, and/or other non-stick surfaces for cooking.
EU Safeguards & regulations: https://www.sgs.com/en/news/2017/06/safeguards-09717-eu-regulates-pfoa-and-related-substances-under-reach
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