A cleaner specifically designed to remove the build up of beer stone and lime scale. From Five Star Chemical, the same manufactures of trusty Star San and PBW.
Directions: 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.