Cool Brewing Fermentation Cooler Bag Type_Diffusion Stone Replacement lid gasket for the

Replacement lid gasket for the Catalyst fermenter

providing a 100% airtight seal while allowing CO2 to escape safely

Disassembles for Easy Cleaning

Capacity: 375 mL

Cool Brewing Fermentation Cooler Bag Type_Diffusion Stone Replacement lid gasket for theControl your fermentation temperatures with Cool Brewing's simple, yet innovative, insulated fermentation bag. This is the 2nd generation Cool Brew bag, which has made cold fermentation's even easier! Fermenting your homebrew at the right temperature is one of the critical factors in making good beer. Let the temperature get too warm, and your beer will taste 'rough' as the soft malt and vibrant hop flavors disappear! Typically an advanced homebrewer