High temperatures can cause the nonstick lining on your skillet or saucepan to release fumes that contain PFCs (perfluorocarbons). PFCs are linked to liver damage and developmental problems. Remember to use wooden utensils in your nonstick pans too. They’re less likely to scratch than metal utensils, which could lead you to ingest the PFCs in the nonstick lining. As an alternative to nonstick, try using cast iron.