Cleans Brew Kettles, Fermentors, Fittings, Tubing and Bottles. Don't waste time soaking and scrubbing! Fast-acting oxygen tears up soils in just minutes with little agitation needed. Formulated to combat calcium carbonate. Rinses clean with no residue left behind. Easily removes labels from bottles. Craft Meister oxygen is great a getting wine stain off of decanters Use on glass, plastic and stainless steel. Not for use on aluminum.