This environmentally responsible SafeCLEAN Plus Ice Machine Cleaner is an NSF approved cleaning and sanitizing procedure that is designed for use in Follett dispensers. It has an organic citric acid based formulation that destroys ice machine scale without noxious fumes, and can be stored and handled without the concerns associated with other acid-based cleaners. It is all natural, non-toxic, biodegradable, contains no phosphates, and is safe to pour down drains. Each packet makes one gallon of solution so there is no measurement required, and the solid granules dissolve quickly and easily when mixed with hot water.