We guarantee good beer quality of fully sealed SUB Keg for 1 month after purchasing from our website. Once you’ve opened your SUB Keg, the beer is guaranteed to stay fresh for 15 days, if stored in a running SUB. You can find the best-by date on the side of your Keg. We guarantee the quality of the beer through the end of the month noted. After this date, quality may decrease. In general, we recommend storing your Keg in a cool and dry location, for instance the fridge. That will ensure the best beer taste and experience.