Removes stubborn grease and grime and restores shine. And it's not just for cooktops – use it on stainless steel sinks and countertops, porcelain sinks, tubs and tiles to remove hard water deposits.Cooktop Cleaner cuts through grease without damaging the surface. Just squeeze a small amount onto the cooktop, or onto a wet sponge, and gently spread the cleaner over the surface.removes silverware marks from porcelain sinks and dishes. It also removes food stains, coffee stains and hard water mineral deposits. Use it on porcelain bathtubs, ceramic tile and door knobs.to remove tarnish from brass, copper and chrome. On brushed metal, apply cleanser and always wipe in the same direction as brush lines. Rinse well and wipe dry.The creamy liquid formula also safely removes tarnish from chrome, copper, brass and brushed metal surfaces.Bar Keepers Friend is a family-owned company based in Indianapolis, Indiana. We develop, produce and package all of our products, to ensure consistency and quality.