As someone who has experience in both sommelier and brewing, I can tell you that the timeframe for enjoying beer from a growler is relatively short. Unlike bottles with a crown cap, growlers do not provide an airtight seal, which means the beer inside can start to lose its carbonation and freshness more quickly. So, it's best not to let a growler sit around for too long before opening it.
Once a growler is opened, the clock starts ticking on the beer's freshness. Generally, you have about 36 hours to enjoy the beer before it starts to go flat. In some cases, you might be able to stretch it to 48 hours, but that's really pushing it. The beer will gradually lose its carbonation, resulting in a less enjoyable drinking experience.
To ensure you get the most out of your growler, it's important to consider a few factors. Firstly, make sure the growler is stored properly before opening. Keep it refrigerated at a consistent temperature, preferably around 38-40°F (3-4°C). This will help slow down the carbonation loss and preserve the beer's freshness.
When it's time to open the growler, be prepared to consume it within the next day or two. It's best to plan your consumption accordingly and avoid opening a growler if you know you won't be able to finish it within the recommended timeframe. Sharing with friends or hosting a small gathering can be a great way to ensure the beer is enjoyed while it's still at its best.
One thing to keep in mind is that different beer styles may have varying shelf lives in a growler. Beers with higher alcohol content and stronger flavors tend to have a longer shelf life, as the alcohol and flavors can help mask any loss of carbonation. However, lighter and more delicate beers, such as pilsners or wheat beers, may lose their appeal much more quickly.
In my personal experience, I've found that the fresher the beer from a growler, the better the drinking experience. There's something special about savoring a beer that was just poured from the tap and enjoyed within a short period of time. So, if you have the opportunity to drink beer from a growler, I highly recommend doing so as soon as possible for the best flavor and carbonation.
The caps on growlers are not as airtight as bottle crowns, leading to a shorter shelf life. Once a growler is opened, you typically have about 36 hours, maybe 2 days at most, before the beer starts to lose its carbonation and go flat. Storing the growler properly and planning your consumption accordingly can help ensure you enjoy the beer while it's still at its best. Cheers!