Bar Keepers Friend® Original Powder Stain Remover was developed over 100 years ago in America This high-performance cleaner uses the natural power of oxalic acid found in rhubarb and parsley It cleans a wide variety of household surfaces including stainless steel china brass copper worktops chrome tiles laminates grouting saucepans sinks etc It also removes a multitude of marks and stains including tea and coffee stains soap scum or limescale baked-on food and rust