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How to make Kombucha

Last Updated: 2019-10-24 by Nick Busey


  • 2 Gallons Water
  • 1 Large Iced Tea Bag
  • 450 Grams Sugar
  • 4 Cups Starter Fluid
  • Scoby that covers at lesat 25% of the surface of the container
  • Clean 3 Gallon Plastic Container
  • Clean White Rag to use as Air Lock
  • Black O-Ring or Rubber Band to attach White Rag


We use 3 gallon Fermonsters, so multiply the above to reach your desired volume.

If filling one fermonster, multiply above by 1.5 If filling two fermonsters, that is 6 gallons, so multiply above by 3. Our 7 gallon fermonsters * 3.5 If filling three, multiply by 4.5.


  • Bring 1/2 of the total volume to a near boil
  • Stop heat, add sugar, stir to dissolve.
  • Add tea bags, steep at least 20 minutes
  • Remove bag carefully, so it doesn't tear.
    • If you do tear the bag, strain it through some cheese cloth.
  • Cover with lid and wait for it to cool to luke warm temperature.
  • Add scoby.
  • Pour starter fluid on top of the scoby, slowly and gently, to form a 'seal' of the starter fluid on top of the container.
  • Let ferment one week.
  • Taste daily until desired acidity is reached.


Finished booch will have a pH between 3.5 and 4.0 with just a touch of sweetness left.

Reddit Master Kombucha Recipe