Ready-to-use formula that removes rust stains, tarnish, hard water deposits, soap scum, mildew, grease and grime from a variety of surfaces.powerful enough to remove oil stains from epoxy-coated concrete garage floors, but gentle enough to use on vintage enamel cookware.Ceramic tiles, porcelain sinks and tiles, Corian vanities, light-colored grout, in the bathtub, and on fixtures and faucets to remove hard water deposits, mildew, soap scum, grime and rust stains.KITCHEN: Use BKF Soft Cleanser to clean the stove top, countertop, oven racks, glass oven door, stainless steel pots and pans, stainless steel sinks, copper pots and pans, aluminum pans, and tarnished utensils.clean the stove top, countertop, oven racks, glass oven door, stainless steel pots and pans, stainless steel sinks, copper pots and pans, aluminum pans, and tarnished utensils.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.