How Long Will A Growler Last Once Opened in How To

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How Long Will A Growler Last Once Opened. However, once opened, the beer will go flat in about 36 hours or less. Growlers of beer will stay fresh for several days (some say up to 10 days) if left unopened.

Growler Questions Moosehead Cold Beer Store
Growler Questions Moosehead Cold Beer Store from mooseheadcoldbeerstore.ca

Once the growler is opened and the seal is broken, you only have 36 hours before the beer goes flat. Once opened, however, leftover beer will be flat within 36 hours at best. Bing, that a tightly capped growler can easily last 4 weeks or more until it is opened.

Growler Questions Moosehead Cold Beer Store

But keep in mind oxygen is now in the beer and it’s a quick decline to having a flat beer. Once opened, however, leftover beer will be flat within 36 hours at best. However, once you open a beer growler, the beer only lasts about 36 hours tops before it goes flat. “for the unopened glass growler, i’d say you could keep it refrigerated about a week to 10 days max,” says hamlet fort, marketing and events manager for station 26 brewing in denver.