As an expert sommelier and brewer, I can tell you that the shelf life of an unopened growler in the fridge varies depending on a few factors. Generally, it is recommended to consume the beer inside as soon as possible for the best taste and freshness. However, if you need to store an unopened growler in the fridge, here are some guidelines to follow.
1. Temperature Control: The key to preserving the quality of beer in a growler is to keep it refrigerated at a consistent temperature. Fluctuating temperatures can lead to off-flavors and spoilage. Make sure your fridge maintains a temperature between 38-45°F (3-7°C) for optimal storage.
2. Quality and Carbonation: It's important to note that growlers are not airtight, so the beer inside may lose some carbonation over time. This can affect the overall taste and mouthfeel of the beer. However, if the growler is sealed properly, it can still maintain its quality for a limited period.
3. Freshness and Flavor: The flavor profile of beer can change over time, even when stored in a refrigerated growler. Hop-forward beers, such as IPAs, tend to lose their hop aroma and bitterness more quickly. On the other hand, malt-forward beers, like stouts, may hold up better over time. It's always best to consume the beer as fresh as possible to experience all the intended flavors.
Based on my experience and discussions with industry professionals, including Hamlet Fort, marketing and events manager for Station 26 Brewing in Denver, I would suggest that an unopened growler can last in the fridge for about a week to 10 days at most. However, keep in mind that this is a general guideline, and the actual shelf life can vary depending on factors like the style of beer, the quality of the seal, and the conditions of your fridge.
To ensure the best taste and quality, it's always recommended to consume the beer inside the growler as soon as possible. Ideally, you should fill a growler on the day you intend to drink it, as this will provide the freshest and most enjoyable beer experience.
An unopened growler can last in the fridge for about a week to 10 days, but it's best to consume the beer as soon as possible for optimal freshness. Remember to store the growler at a consistent temperature, and be aware that the flavor and carbonation may change over time. Enjoy your beer responsibly and savor the delightful flavors it has to offer!