The names

FEP stands for fluorinated ethylene propylene, and PFA stands for perfluoroalkoxy alkane. Both are fluoropolymers, a group that also includes PTFE, the coating most people know as nonstick. According to the US EPA, PFAS is a large group of human-made chemicals, and fluoropolymers are generally treated as part of it.

Do not confuse the abbreviation PFA with PFAS. In cookware talk, PFA is a specific polymer, while PFAS is the family name.

Why the label can be confusing

  • PTFE-free: the coating is not PTFE, but the label does not say whether FEP, PFA or another fluorinated material is used.
  • PFOA-free: this speaks to one chemical once used in making some fluoropolymers. It does not describe the coating.
  • PFAS-free: the broadest claim. Look for the maker's own statement, and any testing it names.
  • Non-toxic: not a defined standard for cookware, so treat it as a seller claim and read the material list.

How to check a pan

Look for the surface material in the product details. Bare stainless steel, cast iron, carbon steel and enameled cookware have no nonstick coating to ask about. For a nonstick or ceramic-type pan, ask the maker what the coating is, and whether the lid, handle and any liner fall under the same statement.

Care sheets also give hints. Makers of coated pans typically give heat limits and utensil advice, and they should state what the coating is made of.

Where to go next

Our PFAS-free cookware guide compares materials and shows how to price a set against single pieces, and our answer on PFAS, PFOA and PTFE explains the other abbreviations. This page explains labels and does not give medical advice. For health questions, ask your doctor and see the EPA's PFAS pages for current information.

Sources

  • US EPA PFAS information pages
  • Manufacturer coating and care information

See also: PFAS-free cookware: what the label means and which materials fit · What is the difference between PFAS, PFOA and PTFE? · What are PFAS? · What does PFOA-free mean on cookware? · Cast iron vs stainless vs ceramic cookware