The safety of nonstick cookware has been under investigation for the past decade. The concerns have centered on chemicals called perfluorooctanoic acid (PFOA) and other Poly-perfluoroalkyl substances (PFASs). They have been linked to many health conditions such as kidney diseases, liver diseases and even different types of cancers.
While most of the PFOA on pots was normally burnt off at high temperatures during the manufacturing process, a small amount remained in the final product. However, all Teflon products have been PFOA-free since 2013 in most of the countries. But in few countries, PFOA is still used in preparing non-stick coating.
Today’s nonstick and Teflon cookware are completely safe for normal home cooking, as long as cooking is done on medium or low heat. But, don’t use it at maximum heat or for hotter cooking methods like broiling.