A SCOBY is a live culture consisting of active yeasts and bacteria used to make kombucha, and it will do best if allowed to continuously culture batches of cultured tea. However, if you need to store a kombucha SCOBY, there are guidelines on how to do so safely, depending on how long you intend to store it.
A SCOBY is typically stored in a glass container. A stainless steel, oak or even a high-quality plastic container will also work.
To store a SCOBY for less than 6 weeks, you can leave it brewing in sugary tea. Kombucha normally brews for seven to 30 days, so brewing it for 6 weeks will result in a strong vinegar taste. The resulting kombucha can be used in salad dressing or in a marinade in place of vinegar, or simply thrown away.
Use a tight-weaved cloth as a lid to the container and secure it with a rubber band.
There are two ways to store a SCOBY for longer than 6 weeks. The first way involves you paying occasional attention, while the second requires less, but this latter method is not guaranteed to work perfectly.