Foam Axe by CellarScience is a uniquely formulated anti-foaming agent that increases fermenter capacity and reduces the risk of kettle boil overs. By reducing surface tension, bubbles are Axed before they can form. Foam Axe actually increases head formation in the finished beer by retaining foam forming proteins that would have normally blown off during fermentation.
In the fermenter, add 1-2 drops per gallon at the start of fermentation. In the kettle, add 1 drop per gallon before the boil starts to help prevent boil overs.
Foam Axe is made from food-grade silicone and works by breaking up foam particles and dispersing surface tension. Foam Axe settles out of beer prior to bottling or kegging. Store cool and in an environment below 90°F. Do not freeze.