You can keep your Cool Brewing bag cold just as you would keep any cooler cold. Just add ice packs or anything cold to keep reach and keep the desired temperature. A great method is to use plastic bottles of ice. This way you can just refreeze them once they thaw and there is no mess. They also last much longer than ice packs.
An exceptional airlock that due to its innovative design, ensures silent fermentation, desired by all homemade brews enthusiasts, for too long haunted by the noise of a brew "at work" using an ordinary airlock. Its inner piston is designed for calmer release of carbon dioxide molecules during fermentation. The piston runs very calmly and does not hit the walls of the airlock's body.
Three-piece airlock recommended for larger fermenters. Innovative construction guarantees silent fermentation process and prevents ingress of dirt and flies. Clear, sturdy and long-lasting. Due to the bigger airlock size liquid evaporation is limited.