Kegging Beer
(selected excerpts)Kegs, another option in packaging beer, are used in bars and catering establishments where beer is served "on draught." Kegging involves filling carbonated pasteurized beer into sterile aluminum or stainless steel kegs of various sizes. Aluminum kegs are generally more popular than stainless steel kegs because they are lighter and more resistant to minor damage. Compared with traditional cask ale, keg beer is more resistant to haze formation and microbial contamination. Consequently, the shelf life for keg beer is between 1 and 3 months compared with the 2 to 4 weeks for traditional cask ale. Kegging fits into the cost structure for craft brewers with limited startup capital for bottling lines and low product output.
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