How long can beer stay in a cooler before it goes bad?

Answered by Louis Krause

As an expert sommelier and brewer, I can tell you that the shelf life of can vary depending on how it is stored. When it comes to bottled beer, proper storage is crucial to maintain its quality and prevent spoilage. If you have a refrigerated area available, this is the ideal place to store your beer as it will help to preserve its freshness and flavors.

When stored properly in a refrigerated environment, bottled beer can typically last up to six months. The cool temperature helps to slow down the aging process and keep the beer in optimal condition. However, it's important to note that this time frame can vary depending on the style of beer. Some beers, particularly high- and barrel-aged varieties, can age well and even improve over time if stored properly. On the other hand, lighter and more delicate beers may start to lose their freshness after a few months.

Now, let's talk about warm environments. If beer is stored in a warm area, such as a room temperature pantry or a hot garage, it can spoil much faster. In these conditions, the beer's flavors can degrade rapidly, and the overall quality can be compromised. In general, I would recommend consuming beer stored in a warm environment within three months to ensure that you are enjoying it at its best.

It's worth mentioning that the shelf life of beer can also be affected by factors such as exposure to light and oxygen. Light, especially UV light, can cause a chemical reaction in beer known as “skunking,” which results in an unpleasant aroma and flavor. Therefore, storing your beer in a dark place, away from direct sunlight, is essential to maintain its quality.

Now, let's take a closer look at other containers commonly used for storing beer, such as crowlers and growlers. These containers are typically meant for draft beer and are filled directly from the tap at a brewery or brewpub. Unlike bottled beer, crowlers and growlers have shorter shelf lives due to their different sealing mechanisms and the presence of oxygen.

A crowler, which is a 32-ounce can, can usually stay fresh for about one to two weeks if properly sealed. The carbonation in a crowler can degrade relatively quickly, so it's best to consume the beer soon after it's been filled.

Growlers, on the other hand, are larger containers, usually 64 ounces, and can be made of glass, ceramic, or stainless steel. When filled at a brewery, growlers can typically stay fresh for up to a week, but the quality can start to decline after a couple of days. The main reason for this shorter shelf life is the presence of oxygen, which can lead to oxidation and a loss of flavor.

While bottled beer can last up to six months when stored properly in a refrigerated area, it's important to consider the style of beer and consume it within a reasonable time frame to enjoy its freshness. For crowlers and growlers, the shelf life is significantly shorter, ranging from a few days to a couple of weeks, due to the presence of oxygen. Remember to always store your beer in a cool, dark place to maximize its shelf life and maintain its quality. Cheers!