For those who aren’t familiar with it, Kombucha Tea is tea that is fermented with a culture of beneficial bacteria and yeast (SCOBY). There are many claimed health benefits to it, although the most widely accepted is as a probiotic. It can be a bit fizzy, so many people use it as a soda replacement. It’s becoming much easier to find in mainstream supermarkets, but usually runs about $4 for a small bottle. Yikes! It’s really not that complicated to brew your own and the way to go IMO if you want to drink it daily.
Ingredients to start 1 gallon of Kombucha:
3 Black tea bags
2 Green tea bags
1-2 cups Granulated white sugar
1 gallon Filtered water
1 Kombucha SCOBY (I got mine from here: https://www.etsy.com/shop/OKposeyMom)
2 cup Starter Kombucha tea (KT) or distilled vinegar
Supplies:
1 gallon glass jar (with spigot for continuous brew)
tightly woven or knit cloth or coffee filter larger than the mouth of the jar
rubber band or elastic big enough to securely fit around the mouth of the jar.
Wooden or plastic spoon (metal is fine unless you need to stir after adding the SCOBY)
Make sure all jars and utensils are clean. Rinse everything really well to be sure there’s no soap residue. For the first batch, you’ll need a full gallon of tea. I use both black and green tea with three black and two green tea bags. As long as you are using unflavored, caffeinated tea, any ratio should work. Brew the tea like normal and add the sugar. Stir to dissolve. It needs to be plain white granulated sugar to make it easy for the SCOBY to break down. The sugar can be adjusted to taste, but for the first batch I like to use a full 2 cups. I’ve also found that in warmer months the brew gets strong really fast, so I add closer to the full 2 cups then to compensate. In cooler months, I can cut back on the sugar.
When the tea is cooled to about 80 degrees, add the SCOBY and starter Kombucha Tea (KT) and/or distilled vinegar. The temperature really isn’t that important as long as it’s cool enough to not kill the SCOBY. I usually just feel the jar. When it feels no more than a little warm, I add the SCOBY. If you don’t have enough starter KT you’ll use distilled vinegar to make up the difference. Do NOT use cider vinegar. Cider vinegar contains some of it’s own culture “mother”. If you use cider vinegar you’ll end up with some sort of hybrid culture.
Cover your jar with the cloth or filter and secure with a rubber band or knotted piece of elastic. This allows it to breathe while keeping dust and ickies out. Wait. and wait. and wait. lol.
The KT usually takes about 7-10 days to develop. It brews faster in warmer weather, so keep that in mind. Starting around day seven, use a straw to siphon off a little from under the SCOBY. You want it to have a little bit of a vinegary zing to it, but other than that the taste is up to you. My first batch tasted like cider made from honey crisp apples-tart but still really sweet.
The longer it brews the less sweet and more vinegary it will taste. If you think it needs to brew longer, leave it for another day or two and taste again. If you like the taste, great! Time to bottle it and brew batch number two.
For batch brewing, you’ll basically be doing everything you did for your first batch. All but 2 cups of KT from your first batch can go in to bottles. I use Mason jars. If you want to add flavorings you’ll add them to the bottled KT. I’ll do a post about that later. The 2 cups you reserve and your SCOBY will stay in the jar to start the next batch. (Every few batches, you will want to transfer them to a non-metallic bowl so you can wash the jar. If you keep a second jar on hand, you can just switch jars every batch.)
Repeat the above steps including the wait time for each new batch.
With each new batch, you will grow a new SCOBY. Usually the new SCOBY will grow on top of the old SCOBY. Technically you can separate the new SCOBY each time to use in your new batch. I like to leave the SCOBYs alone until it gets to be about a half inch to an inch thick. After that, I’ll separate off a few layers by pulling it apart between two layers. One SCOBY keeps brewing while the other goes into a big jar with some KT and a lid, aka a SCOBY hotel. Many SCOBYs can live in a hotel as long as you have enough KT to keep them moist. It’s always a good idea to have an extra SCOBY or two on hand in case your batch gets contaminated. You can also give your extra SCOBYs to friends so they can start their own brew.
Next week I’ll cover how to move from batch brewing to continuous brewing.
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