What is the typical shelf life of an unopened growler when refrigerated?

The typical shelf life of an unopened growler when refrigerated is about 2 weeks. This timeframe is primarily due to the nature of the beer's packaging and its exposure to light, oxygen, and temperature variations.

When a growler is sealed properly and kept refrigerated, the cold temperature helps to slow down the degradation of the beer. However, even in ideal conditions, the beer can still experience changes in flavor and aroma over time due to natural processes like oxidation, which can occur even without direct exposure. After about 2 weeks, the freshness of the beer will start to decline noticeably, affecting its taste and quality.

In contrast to the incorrect options, a shelf life of just 1 day is too short for a sealed growler under refrigeration, while 1 month and 3 months exceed the typical shelf life and suggest a level of stability that is not characteristic of most beers packaged in growlers. Therefore, the 2-week timeframe is a practical guideline that balances freshness with the realities of beer stability in a growler format.