As an expert sommelier and brewer, I can tell you that the shelf life of kombucha in a keg is quite similar to that of a sealed can or bottle. When properly cooled and sealed, a keg of kombucha can stay fresh for around 6-8 months. This means that the taste, quality, and health benefits of the kombucha will remain intact during this time period.
However, it is important to note that the length of time the keg stays full will be much shorter. Once the keg is tapped and the kombucha starts to be served, the lifespan of the keg will depend on various factors such as the size of the keg, the frequency of consumption, and the conditions in which it is stored.
In my personal experience, when I have a keg of kombucha at home, it usually lasts for a couple of weeks at most. This is because I enjoy sharing it with friends and family, and we tend to consume it fairly quickly. However, if you have a smaller keg or you are the only one drinking from it, it may last longer.
To ensure that the kombucha in the keg remains fresh for as long as possible, it is crucial to store it properly. This means keeping the keg refrigerated at all times, as kombucha is a live beverage and can spoil if left at room temperature for too long. Additionally, make sure the keg is properly sealed to prevent any contamination or oxidation.
If you are considering getting a keg of kombucha, it is important to take into account your consumption habits and the size of the keg. If you are a frequent kombucha drinker and have a large group of people who will be enjoying it with you, a keg can be a great option. However, if you are a casual drinker or only plan to have kombucha occasionally, it may be more practical to stick to individual bottles or cans.
A properly cooled and sealed kombucha keg can have a shelf life of 6-8 months, similar to that of a sealed can or bottle. However, the keg will likely be consumed much faster, depending on factors such as keg size and frequency of consumption. Proper storage and refrigeration are essential to maintain the freshness and quality of the kombucha in the keg.