Consisting of 90% copper and only 10% stainless steel, these pans heat faster and more evenly than stainless-steel cookware (just not as well as a tin lined pan.) When we say nonstick cookware set, we mean all types of nonstick cookware, including the self-purported, nontoxic, PFAS, PFOA and PTFE ceramic-coated cookware sets that are available these days. We know many people love their nonstick frying pans and nonstick skillets, but there are a few reasons why a full pan set with nonstick coatings is not the best idea.