LSR (Last Step Rinse) is an acid anionic formula for rinsing kegs, draft lines, brewing tanks, and lines. This product helps eliminate odors and flavors while leaving equipment fresh and sanitary. LSR is designed to remove beerstone, scale, and other soils, and is effective at all temperatures. This product can be used in CIP applications, keg washing and soaking parts. Do not use LSR on aluminum.