Contains no harsh chemicals. BKF MORE spray cleanser is safe to use on most surfaces: stainless steel, copper, aluminum, bronze, glass, porcelain, ceramic and more. removes stubborn grease and grime, rust stains and mineral deposits. Its non-abrasive formula is safe to use on most surfaces, including glass, ceramic, porcelain, stainless steel, aluminum, Corian and brass, bronze and copper alloys. SPRAY OR FOAM OPTION: Set the nozzle to spray (open flap) when cleaning horizontal surfaces. For vertical surfaces like shower doors and tile walls,set the nozzle to foam (close flap) ? the foam clings to vertical surfaces to help penetrate grime, soap scum or mineral build-up.TACKLE LARGE CLEANING PROJECTS: With Bar Keepers Friend MORE Spray+Foam, you can quickly coat large surfaces like non-stone countertops or outdoor tabletops. Just spray it on, wipe the surface with a wet sponge, rinse well and dry.removes rust stains, soap scum and mineral deposits. For stubborn stains, spray on, allow to set up to a minute, scrub with non-scratch pad, sponge or microfiber cloth, wipe, rinse well, and repeat if necessary.Use regularly to inhibit rust growth and mineral deposits.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