I just realized that I haven't discontinued using a tea kettle for heating water for coffee and tea. I have mostly switched over to using glass and better quality Teflon in cooking, since Peat suggests those are better. However, I realize I'm still using the tea kettle. I just checked the tea kettle and it is strongly magnetic which is supposed to mean it is good quality safe steel for cooking, I think. None of my other steel cooking pans is magnetic. Anyway, it appears to be enameled inside as well as out. Not sure if that's good.