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How to protect Kombucha

Kombucha in the tropics

Protecting kombucha in hot and humid conditions can be tricky! Steamy nights and sizzling hot days can create all sorts of extra mould and bacteria that may potentially ruin your ferment. Having been struck down by various unwanted visitor, I had to throw out many brews in the early days. That was until I learned this trick! It’s super easy and once you use it, you’ll wonder what you did without it. Make sure you share with fellow fermenters and leave a comment below to let me know if you’ve used it, are going to use it or if you have another tried and tested tip to protect your ferment. 

Hot and humid Darwin NT

Hot and humid Darwin NT

First aid for Kombucha brews
Kombucha brewers best friend
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Cook Time
10 min
Cook Time
10 min
  1. 2 cups white vinegar
  1. Making the brew
  2. Gently boil white vinegar in a stainless steel or glass pan for 10 minutes.
  3. Allow to completely cool before pouring into a plastic spray bottle.
  4. Adjust nozzle to wide spray.
  5. Using the brew
  6. Gently spray on top of brewing kombucha around day 3 - 5.
Do not spray more than 3 times in a brewing cycle
If mould appears you must throw away the entire brew
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