Just bought 2 sautee pans from the Palm Restaurant line of cookware that Marshall's TJ Maxx sells. They are white ceramic and say they are eco friendly. Does anybody know what that means? Are they safe for ingestion? I use non stick to reheat leftovers and scramble or fry eggs, but I have an electric stove and don't generally use a setting higher than 4 on a dial of low 2-8 High.