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> There is general agreement that dietary intake is the largest source of PFAS exposure rather than inhalation or dermal contact [...] For PFOA, EFSA suggested the most important sources of chronic exposure were milk and dairy products for toddlers (up to 86% of exposure), drinking water (up to 60% for infants), and fish and other seafood (up to 56% in elderly).

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6380916/

> There really is a very minimal amount of residual PFOA or other perfluorinated chemicals in the nonstick pans — like, you know, thousands of folds lower than what is observed in the water or food. -- Dr. Mimi Huang, NIH

https://www.youtube.com/watch?v=5FNNKhVoUu8 (7:47)