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Due to a variety of beer styles and storage options for your keg, thereâs no set answer to this question. Depending on who you ask or what site you read, the answer will range between 20-120 days.
How Long Will A Keg Last Once Tapped? Discussion in 'Home Bar' started by treyrab, Feb 19, 2014. Hi all - Looking to get a 5 gallon keg of a 13% imperial stout for my kegerator. I know I won't finish a keg of such a big beer very fast. Will a keg last a year or more once tapped? Will it go flat and need re-carbonated?