Just wet it with water and rub it off. No detergent is needed. Just wet it with water and scrub. Diamond stripping Sponge Wonder! Click before wetting the sponge becomes softerwhen wet. With a diamond formular, you can easily remove the toughest barns from kettles and frying pans. you can use it all the way to the end. Use for kettles, frying pans, trivets,pots, and barbecue nets.