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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.
01-03-2013, 07:08 AM. Happy New Year everyone! I would like to know how long beer in a kegerator will stay fresh and drinkable, assuming its under the right pressure and temperature. 50 liters of beer can take a while to consume so I was wondering how long I have until I need to kill my keg. Its been tapped for 3 weeks now and tastes great, but how long do I have?