Fermentation Techniques Open vs. Closed Fermentation:Homebrewers have the selection of acting associate open or closed fermentation. because the name implies, open fermentations occur during a instrumentality that's receptive the atmosphere. historically, most English beer breweries used open fermenters and a few still do. One advantage to associate open fermentation is that the yeast have access to environmental atomic number 8 throughout fermentation. Secondary Fermentation: several homebrewers perform a "secondary fermentation" of their beers. Secondary fermentation merely suggests that the brew is racked to a different vessel (a secondary fermenter) and allowed to age before bottling or kegging. Despite the name, the brew doesn't begin a second part of fermentation. For this reason, some folks decision this part learning or maturation rather than secondary fermentation. Temperature:Once the wort has been cooled, aerated and also the yeast has been pitched, the first task for the homebrewer is to take care of the temperature at an appropriate level Fermentation Equipment: the 2 most well liked fermenters for homebrewers area unit buckets and carboys. For homebrewers with some spare amendment, cylindro-conical fermenters are also gaining in quality Stuck Fermentation: One drawback that homebrewers face is stuck fermentations-fermentations that do not begin or stop before attaining an inexpensive final gravity