Pumie cleaning products remove scale, stains and residue from porcelain, ceramic tile, concrete and other hard surfaces. Pumie is non-toxic pumice and removes stains where chemicals, cleansers and scrub pads fail in the kitchen and public spaces. Grillmaster is a non-toxic pumice multi-purpose cleaner used in kitchens on grills, griddles, cast iron grates, and some cookware to remove soot and carbonized foods. Grillmaster cleans without odors or chemicals and will not remove surface sure when used as directed. (less)