A common non-stick coating for non-stick pans is Teflon coating. Ammonium perfluorooctanoate is a processing aid used in a very small amount in the production. Data suggest that high doses of ammonium perfluorooctanoate may lead to elevated cholesterol levels, thyroid disease, and infertility. Teflon has very stable physical and chemical properties at normal temperature and normal conditions. Cookware with Teflon non-stick coating will not change in the temperature range from normal temperature to 260 °C, but when the temperature exceeds 260 °C, the coating will not change. The layer gradually transitions to an unstable state, and decomposition occurs when the temperature exceeds 350 °C. During normal cooking, the boiling point of water is 100°C, and stir-frying with a higher temperature is usually only about 200°C. Even if frying is used, the oil temperature will not exceed 250°C. However, if you like to dry the pot and add oil after cooking, the temperature in the pot will easily exceed 260°C.
Nonstick coating breaking down while cooking cannot be launched and can lead to higher cholesterol levels.