Well, thank you very much, Pups! I do try to be thorough, if a bit wordy at times. I don't have a self-cleaning oven and really can not start a hot burning fire where I am (almost w/in sight of the city Fire Dept.!) so I cleaned my grandmother's really old skillet using the method I posted. Worked like a charm and didn't harm the skillet. I would never put a valuable piece of cast iron in a fire to burn off the crud.