How Long Can Beer go in an Unopened bottle without going flat?!
How Long Can Beer go in an Unopened bottle without going flat?
How Long Can Beer go in an Unopened bottle without going flat?
Answers:
Under ideal storage conditions I would say for years. To many variables to know for sure. But I have some (barleywine) that are nearly 6 years old. The last one I opened about 3 months ago was fine, it had good carbonation.
So again I say for years.