PBW (Powdered Brewery Wash) is the industry standard for professional brewery and homebrew maintenance. This 4 lb jar provides a high-efficiency solution for removing tough organic soils, burnt-on wort, and "beer stone" from stainless steel, glass, and plastic. Utilizing active oxygen and specialized surfactants, it works faster and more effectively than standard cleaners, especially in hard water, ensuring your equipment is stripped to a factory-clean finish without the need for intense scrubbing. Non-caustic and safe for the environment.