Flavor kombucha during the second fermentation by adding fruits, juices, herbs, or spices to the sealed bottles. Popular flavors include ginger lemon, berry blends, and tropical fruit combinations.
The second fermentation (F2) is where you add flavor and carbonation to your kombucha. After the initial fermentation, strain your kombucha and transfer it to airtight bottles, leaving about 1-2 inches of headspace. Add your chosen flavoring ingredients to each bottle. The amount of flavoring depends on your preference, but a good starting point is 10-20% flavoring to 80-90% kombucha. Seal the bottles tightly and let them ferment at room temperature for 1-3 days, burping them daily to release excess pressure and prevent explosions. Refrigerate to slow down fermentation and enjoy.
Here are some popular flavor combinations:
Use a flavoring ingredient with natural sugars to boost carbonation during the second fermentation. Fruits are excellent for this purpose, but be mindful of the sugar content, as too much can lead to overly fizzy or even explosive kombucha.