Coffee Kombucha

Kombucha is traditionally made with brewed tea (from the Camellia sinensis plant). Did you know you can also use coffee to make this probiotic elixir?

I decided to start with a cold-brew. My bet was that the flavors would be more noticeable in the finished kombucha coffee. I was right!

After you use a SCOBY (the mother or starter culture for kombucha) to make coffee kombucha, you should store it separately from tea SCOBYs. Start your own “SCOBY café”!

Coffee Kombucha
Prep time
Fermentation time
Yield: 56 oz/1.6 liters
  • 54 fl oz. (1.6 liters) plus ¼ cup/60 ml filtered water
  • ⅓ cup/60 ml sugar
  • 4 ounces (by weight)/113g whole coffee beans (or ground coffee)
  • 4 ounce (by weight)/113g or larger kombucha SCOBY
  • ½ gallon or larger glass jar or ceramic vessel
  • Food grade canvas/muslin bag to hold coffee grounds
Make Cold Brew Coffee
  1. Grind coffee and pour into canvas/muslin bag. Tie bag off tightly so grounds cannot escape.
  2. Fill jar/vessel with 54 oz/1.6 liters of cold water. Add coffee bag and put in refrigerator.
  3. Twelve hours later, remove coffee bag and lightly squeeze bag over jar/vessel to capture remaining liquid. Compost or discard grounds.
  4. Filter coffee into another container through a paper coffee filter to remove any sediments. Pour back into jar/vessel.
Make a simple syrup
  1. Add sugar and ¼ cup/ 60ml water to a small saucepan. Heat until sugar dissolves. Remove from heat and let cool.
  2. Add simple syrup to jar.
  1. Allow coffee to warm to room temperature (70°F/21°C or higher).
  2. Add SCOBY to jar. Be sure to coat your fingers with mature kombucha or vinegar first before handling SCOBY.
  3. Cover with a cloth and secure with a rubber band. Place in a spot out of direct sunlight.
  4. Check after 5 days. If you like the taste, remove the SCOBYs and decant to another jar. If not, check again in another day.
  5. When finished, put lid on container and store in fridge.
  6. Serve chilled.
  7. NOTE: Keep coffee SCOBYs separate from tea SCOBYs.

3 thoughts on “Coffee Kombucha

  1. Merryn Galluccio Reply

    Thank you this is a great idea. Absolutely brilliant and I am heading for the coffee beans right now. Do you rinse the tea scoby before converting it to a coffee scoby or just put it straight in the coffee solution? Regards Merryn

    • Austin Post authorReply

      Great, glad you like it! I didn’t do anything special to rinse the SCOBY when converting; I didn’t think it was necessary. If you really wanted to, you could pour some some ACV or distilled vinegar on it to remove any residual tea flavor.

  2. Martha Johnston Reply

    Thanks for sharing. Mine tasted great. I drank it with some almond milk. I also mixed some cold brew coffee with some of my tea kombucha as a flavoring in a second ferment. One question is what liquid do you store your used coffee scoby in. Some of the liquid from the fermented cold brew coffee as you do with the tea? I want to make some more? I read somewhere the oils form the coffee makes the scoby a little easier to mold then the tea scoby

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