PBW - Powder
PBW is an environmentally friendly alkali cleaner. It is safe for use on metals, rubber gaskets, tubing, plastic parts and even your skin. It will remove tough, caked on debris and rinses clean. It is environmentally friendly, biodegradable, and will not harm septic systems.
PBW stands for Powdered Brewery Wash and is a patented cleaner originally developed for Coors. Use 1 to 2 ounces per gallon for cleaning kettles, 3/4 ounce per gallon for fermenters, kegs, tanks, and other equipment. Simply soak the equipment overnight in the solution and rinse the following morning, no scrubbing is required.