Rosemary and Grapefruit Kombucha Flavor Recipe

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5 from 4 reviews

Grapefruit rosemary kombucha is one of the best kombucha flavor combinations! This grapefruit kombucha recipe is for a second fermentation flavoring and carbonation.



  1. Fill a 1-liter swing top bottle halfway with fermented sweet tea from primary fermentation.
  2. Top off the bottle with organic grapefruit juice so that there is about an inch or two of headspace left in the bottle.
  3. Add one rosemary sprig to the bottle.
  4. Secure the bottle lid and gently invert it a couple times to mix.
  5. Allow it to ferment at room temperature (70-80 degrees F) for 5 Days.
  6. Carefully open the lid to see if it is carbonated to your liking. If it is, refrigerate; if not continue to ferment for a few more days, then carefully recheck the carbonation.
  7. Keep refrigerated