The F2 phase (secondary, bottled fermentation) is the step where kombucha becomes your own. While F1 always gives you the same basic, tangy tea, F2 flavoring allows for nearly endless variation — from fruity to spiced, floral to fiery. On this page we’ve gathered proven, good-starting-point ratios and combinations.
The basic rules of F2 flavoring
Before diving into the recipes, it’s worth understanding a few basic principles:
How to use this recipe collection
Every recipe includes the suggested ingredient amount per 500 ml of kombucha, the approximate F2 time, and a few variation tips. These are starting points — you should always adjust the final ratio to your own taste and the acidity of your base kombucha.
If you’d like to save your own proven recipe ratios and restart a batch from them with one tap, the Kombucha Coach app’s recipe feature supports that too.
