Stain & Rust Cleaner, Clean Kitchen Utensils And Pots Kitchen Hearth Oil Black Dirty Clean Lampblack Machine OilOur all purpose cleaners contain vegetable acids and surfactants. It can remove stubborn stains, rust and oxides from a variety of surfaces, including kitchens, bathrooms and more. The way to use it is very simple: 1. Spray the spray on the surface. 2. Wait a few seconds for it to penetrate. 3. Brush away dust and rust. 4. Finally remove all dirt with a damp cloth. And will not cause damage to the metal surface.