Five Star Beer Stone Remover - 8 oz.
For removal of beer stone and scale, that can accumulate on the inside surfaces of brewing equipment.
Use at rate of 1 oz. per gallon of water. Allow contact time of 10 min. Drain and allow the surface to air dry. Rinse and sanitize just prior to next use.
For stubborn scale or stone follow standard instructions but do not dilute. Apply full strength to area.