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I was wary of Kombucha when a coworker offered it to me a few years ago and eyed the golden liquid with suspicion. But one sip and I was converted! Forget all the health benefits (probiotics, aids in gut health etc), it was delicious. Sweet, tart and fizzy. It was hard to believe it was made from tea. 

Kombucha starts out as a sugary tea, which is then fermented with the help of a scoby which is actually an acronym for "symbiotic culture of bacteria and yeast." The scoby bacteria and yeast eat most of the sugar in the tea, transforming the tea into a refreshingly fizzy, slightly sour fermented beverage.

Kombucha is full of probiotics that our intestines love and helps boost our overall health especially your gut.

  • 3 1/2 quarts water
  • cup sugar (regular granulated sugar works best)
  • bags black tea, green tea, or a mix (or 2 tablespoons loose tea)
  • cups starter tea from last batch of kombucha or store-bought kombucha (unpasteurized, neutral-flavored)
  • scoby per fermentation jar, homemade or purchased online
  • Optional flavoring extras for bottling
  • 1 to 2 cups chopped fruit
  • 2 to 3 cups fruit juice
  • 1 to 2 tablespoons flavored tea (like hibiscus or Earl Grey)
  • 1/4 cup honey
  • 2 to 4 tablespoons  fresh herbs or spices
  • Equipment-

  • Stock pot
  • 1-gallon glass jar or two 2-quart glass jars

  • Tightly woven cloth (like clean napkins or tea towels), covvee filters, or paper towels, to cover the jar

  • Bottles: Six 16-oz glass bottles with plastic lids, swing-top bottles, or clean soda bottles

  • Small funnel

Instructions

  1. Make the tea base: Bring the water to a boil. Remove from heat and stir in the sugar to dissolve. Drop in the tea and allow it to steep until the water has cooled. Depending on the size of your pot, this will take a few hours. You can speed up the cooling process by placing the pot in an ice bath.

  2. Add the starter tea: Once the tea is cool, remove the tea bags or strain out the loose tea. Stir in the starter tea. (The starter tea makes the liquid acidic, which prevents unfriendly bacteria from taking up residence in the first few days of fermentation.)

  3. Transfer to jars and add the scoby: Pour the mixture into a 1-gallon glass jar (or divide between two 2-quart jars, in which case you'll need 2 scobys) and gently slide the scoby into the jar with clean hands. Cover the mouth of the jar with a few layers tightly-woven cloth, coffee filters, or paper towels secured with a rubber band. (If you develop problems with gnats or fruit flies, use a tightly woven cloth or paper towels, which will do a better job keeping the insects out of your brew.)

  4. Ferment for 7 to 10 days: Keep the jar at room temperature, out of direct sunlight, and where it won't get jostled. Ferment for 7 to 10 days, checking the kombucha and the scoby periodically.

  5. It's not unusual for the scoby to float at the top, bottom, or even sideways during fermentation. A new cream-colored layer of scoby should start forming on the surface of the kombucha within a few days. It usually attaches to the old scoby, but it's ok if they separate. You may also see brown stringy bits floating beneath the scoby, sediment collecting at the bottom, and bubbles collecting around the scoby. This is all normal and signs of healthy fermentation.

  6. After 7 days, begin tasting the kombucha daily by pouring a little out of the jar and into a cup. When it reaches a balance of sweetness and tartness that is pleasant to you, the kombucha is ready to bottle.

  7. Remove the scoby: Before proceeding, prepare and cool another pot of strong tea for your next batch of kombucha, as outlined above. With clean hands, gently lift the scoby out of the kombucha and set it on a clean plate. As you do, check it over and remove the bottom layer if the scoby is getting very thick.

  8. Bottle the finished kombucha: Measure out your starter tea from this batch of kombucha and set it aside for the next batch. Pour the fermented kombucha (straining, if desired) into bottles using the small funnel, along with any juice, herbs, or fruit you may want to use as flavoring. Leave about a half inch of head room in each bottle. (Alternatively, infuse the kombucha with flavorings for a day or two in another covered jar, strain, and then bottle. This makes a cleaner kombucha without "stuff" in it.)

  9. Carbonate and refrigerate the finished kombucha: Store the bottled kombucha at room temperature out of direct sunlight and allow 1 to 3 days for the kombucha to carbonate. Until you get a feel for how quickly your kombucha carbonates, it's helpful to keep it in plastic bottles; the kombucha is carbonated when the bottles feel rock solid. Refrigerate to stop fermentation and carbonation, and then consume your kombucha within a month.

  10. Make a fresh batch of kombucha: Clean the jar being used for kombucha fermentation. Combine the starter tea from your last batch of kombucha with the fresh batch of sugary tea, and pour it into the fermentation jar. Slide the scoby on top, cover, and ferment for 7 to 10 days.



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