2012/6/25/ · Manufacturer : Home Brew Ohio : Product Dimensions : 21.5 x 21.5 x 26.5 inches : Item Weight : 4 pounds : ASIN : Fermenting Brewing Bag, Insulated Fermenter chamber. Fermentation Cooler 2.0. Recommendations. Varies ... it was no problem keeping a 7-gallon Brewmaster Bucket at 40F for as long as needed. With more-regular