What was I thinking????? I just pressed a cloth napkin with my favorite iron, not thinking about the fabric NOT being 100% cotton. I don't know what the fabric was, but now I've got a coat of black gook on the iron plate. I've tried all the conventional remedies little success. I've got a bottle of jellied oven cleaner that does a fantastic job on my oven (got it from an industrial cleaning supply store). Dare I try it on my steal iron plate, whatcha think???