One Step - 8 oz. Clean your beer- and wine-making equipment quickly and easily with the non-toxic, oxygen-based One Step No-Rinse Cleanser Environmentally-friendly and non-harsh, One Step uses no acids and no chlorine, which can leave a film on glass and corrode stainless steel All you need is 1 tablespoon and 2 minutes of contact time. No rinsing needed. Safe to use on any of your beer- and wine-brewing equipment