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November 11, 2006C'est What Fest Results & Beer Update
Their monthly newsletter also announces some changes to their cask cellaring system: One of our renovation projects over the summer was a completely new cellaring system for the five cask ales that we offer. Our "real" ales are refrigerated at a cool cellar temperature of about eight degrees from cask to tap including the piston of each "beer engine". We have also installed an aspirating valve (also known as a "cask breather") so that the space at the top of each cask that is evacuated when beer is dispensed is filled with a mixture of 75% nitrogen and 25% carbon dioxide (the same mixture that pushes "nitro" tap beers like Coffee Porter and St. Ambroise Oatmeal Stout). This prevents the beer from coming into contact with air and oxidizing. The 75/25 gas mix has a low enough carbon dioxide level to prevent it from carbonating the beer. By comparison, the mixture that is used for our more conventionally dispensed brews is 40% nitrogen and 60% carbon dioxide. These products need more carbon dioxide to maintain their higher level of "fizz".Posted by Bar Towel News Editor at November 11, 2006 09:10 AM |