Powers away limescale and mineral buildupNo. 1 Recommended by Whirlpool KitchenAid Maytag and Amana brands (affresh brand products and the recommending brands' products are all owned and distributed by Whirlpool Corporation)Cleans what you can't see: your machine's tub racks pump and valve drain and recirculation hosesCleans inside all dishwasher machine makes and modelsUse monthly or as needed to maximize machine performance (heavily soiled machines may require extra cleaning cycles)