Bar Keepers Friend is specially formulated to clean, shine, and polish without scratching surfaces or leaving a filmy residue. Since 1882, this non-abrasive powerhouse has been tough on stains yet gentle on surfaces. It s perfect for cleaning copper, brass, stainless steel, chrome, glass cooktops, ceramic, porcelain, tile, fiberglass, even plastics, like food storage containers, and more. Use it on the kitchen sink, cookware, cooktops, and non-stone countertops. Keep the bathroom cleaner and remove hard water stains, soap scum, and rust stains from bathroom sinks, tubs, shower doors, and toilets. Put it to work cleaning outdoor grills, tackle grime in the garage, remove rust from tools, clean sneakers and sports equipment, patio furniture, vinyl siding, garbage cans, and so much more. Recommended by top brands, like All-Clad, Calphalon, Emerilware, Kohler, and Viking, Bar Keepers Friend rightfully carries the motto the motto Once Tried, Always Used. In 1882, an Indianapolis chemist noticed how clean and shiny a once tarnished pot was after it was used to cook rhubarb. Formulated from an active ingredient found in the rhubarb plant, the talcum-smooth cleanser was created and sold to local city taverns to clean bar fixtures. It was dubbed the Bar Keepers Friend. Not intended for use on gold, silver, pewter, marble, lacquered metals, or anodized aluminum. Follow directions printed on the packaging.