How Long Does A Growler Last Once Opened in How To

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How Long Does A Growler Last Once Opened. When it comes to growlers, remember these three rules: When a growler is opened air replaces the beer inside the growler and the remaining beer in the growler oxidizes quickly.

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Growlers are made dark in colour only for that reason itself so that the beer inside does not get spoilt. #8 heretic42, apr 21, 2015. How do you keep a growler fresh?

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We suggest consuming your growler within two weeks of purchase (but seriously, why are you waiting so long?!?). I agree with you overall, but freshness is almost never a factor when i'm buying a growler. Once opened, however, leftover beer will be flat within 36 hours at best. How long does growler last once opened?