{ Fermentation Tank }

4) The wort is then pumped through the heat exchanger, where it is cooled and oxygenated, and then transferred into a temperature controlled fermentation tank. Yeast is immediately injected into the tank to initiate fermentation, during which yeast cells ingest the sugars in the wort, which in turn produces alcohol and carbon dioxide. For ales, primary fermentation lasts for three to four days at a typical temperature of 68 degrees Fahrenheit. After this time, tank temperatures are dropped and fermentation slows until completion, an additional one to two weeks.