+3 Five Star Kettle Defoamer 105 400000022628 $7.49 Pre-order Quantity: 1 Pre-Order Product Details Five Star Defoamer 105 prevents and eliminates excessive foam in boil kettles and fermenters. Keep your brew day easier by stopping boil-overs before they happen. 10% silicon-based. Add as needed but begin with only a couple of drops. Save this product for later Favorite