The only patented non-caustic cleaner designed to clean stainless steel and safe for use on glass, copper, plastic, brass and ceramic equipment. Environmentally friendly and safe to handle. Use 2 oz. per 5 gallons of warm water, soak for 30 minutes and rinse with warm water. Five Star Products and Services is the leader in the development of cleaning and sanitizing products for the brewing industry. Now you can clean without scrubbing and sanitize without rinsing. Available in 2 oz, 1 lb, and 4 lb sizes.