How to Brew Kombucha Tea at Home

kombucha bottles

New project in the house – what’s with the bail top bottles?  I’ve taken my first plunge into the world of home brewing, or should I say “home fermenting”?  I’ve been aware of the health benefits of probiotics for some time, and have occasionally indulged in one of those pricey bottles of kombucha from the natural foods section of the store, but just hadn’t taken the time to try making my own at home.

Serendipity smiled upon me, and I found out that another homeschool mom in my natural foods co-op had been brewing her own kombucha for some time and was happy to share a scoby (Symbiotic Colony of Bacteria and Yeast) with me.  I re-read the info I had on kombucha from Wild Fermentation and Nourishing Traditions, paid my friend a quick visit, and brought home two new scobys safely packaged in a covered pyrex container.  I shared my extra scoby with another natural foods friend.  (They say you should always keep a spare in case something goes wrong with yours, but I knew I could get a replacement from the first friend.)  And then – my scoby sat in the fridge. (Which, BTW, is not the best thing for a scoby.  Store them at room temperature with enough liquid to cover.  A large mason jar works quite well.)

I was excited about the concept, but the original brew I smelled reminded me of a combination of old socks and vinegar, which made me a little nervous.  I had a heck of a time tracking down an appropriate container to brew in – very few things come packaged in glass anymore, and I really didn’t need a gallon of olives.  Finally, I found some nice gallon containers at Walmart.  They had a lid that I didn’t need, but the ridge around the top was handy for holding the rubber band in place that kept the cloth covering the brew in place.

No more excuses – old sock smell or not, it was time to take the plunge.  I used the recipe from Wild Fermentation, shown below.  I make three quarts at once and ferment them in a gallon container.

Timeframe:  About 7-10 days

Ingredients (for 1 quart/1liter):

1 quart/1liter water
1/4 cup/60 milliliters sugar
1 tablespoon/15 milliliters loose black tea or 2 teabags
1/2 cup/125 milliliters mature acidic kombucha
Kombucha mother (SCOBY)

Directions:

  1. Mix water and sugar and bring to a boil in a small cooking pot.
  2. Turn off the heat;  add tea, cover, and steep about 15 minutes.
  3. Strain the tea into a glass container.  It’s best to use something wide; kombucha needs adequate surface area and works best if the diameter of the container is greater than the depth of the liquid.  Allow the tea to cool to body temperature.
  4. Add the mature acidic kombucha.  when you obtain a culture, it will be stored in this liquid.  Save a portion of the subsequent batches for this purpose.
  5. Place the kombucha mother in the liquid, with the firm opaque side up.
  6. Cover with a cloth and store in a warm spot, ideally 75- to 85F (21 to 29 C).
  7. After a few days to 1 week, depending on the temperature, you will notice a skin forming on the surface of the kombucha.  Taste the liquid.  It will probably still be sweet.  The longer it sits, the more acidic it will become.
  8. Once it reaches the acidity you like, start a new batch and store you mature kombucha in the refrigerator.  you now have two mothers, the original one you started with, and the new one.  use either the new or the old mother in your new batch, and pass the other one on to a friend (or the compost).  Each generation will give birth to a new mother, and the old mother will thicken.

I followed the instructions, and low and behold a week and half later I was staring at this.

kombucha scoby

Floaty thing – check.  Acidic – check.  Drinkable – check.  Tart, with a slight vinegar taste, but no old socks.  Still, I like the fancy flavored brews in the store, so I decided to experiment a bit.

I fished out the scoby.

kombucha scoby in bowl

This thing really does look a little gross, like a rubbery piece of old, mysteriously white meat, of maybe blubber.  The blob in the bowl is the original, the new growth is in my hand – fat and healthy.

Straining chunks – I wasn’t ready to face those yet.

straining kombucha

Into the bottles.

bottling kombucha

I flavor the kombucha after the initial brewing, when I remove the scoby and put the kombucha into bottles.  You can also used flavored teas from brewing, although those that contain essential oils (like Earl Grey) are not recommended.  With this batch I tried 1/4 cup apple cider per bottle in two bottles, one with some blueberries, and one with some raspberries.  I didn’t measure the berries, I simply loaded them in until they covered the bottom of the bottle.

kombucha and fruit
kombucha and apple cider

I left one of the cider bottles on the counter for three days, the other I put in the fridge.  Leaving it out produces more bubbles, refrigeration gives a sweeter brew.  All the bottles produced a very tasty brew which I enjoyed very much, so much, in fact, that I got another container and now have two batches going at once.  I like to let the second brew age for at least a few days to blend the flavors.  IMHO it only improves with age, but I haven’t had any last for over two weeks.  I drink it too fast.

homebrewed kombucha

In addition to the above flavors, I’ve also tried straight blueberry juice, grape juice, honey and ginger (about a tablespoon of each per bottle), and Ghirardelli Double Chocolate Hot Cocoa mix….mmmm…chocolate.  So far I think my favorite is the blueberries, but all are tasty.  It’s fun to munch on the bubbling fruit at the bottom of the bottle.  The chocolate was a hoot.  I got a little nervous because the powder formed an obstruction at the top of the bottle and didn’t appear to blend in well.  When I finally popped it open (after almost a two week ferment), the carbonation had built up so much (because of the high sugar content) that it blew the foamy chocolate snake right out of the top of the bottle.  So much for the bottle getting blocked – no problem.  Most of the sugar was gone by this point, so the flavor was more like straight, strangely effervescent unsweetened cocoa, but it was still pleasant, and highly entertaining.  I think the ginger could use more ginger, but I’m not sure how much.  Suggestions are welcome, along with suggestions for other flavors.  I’ve got some more fruit juice (pomegranate and mango – the Knuten’s pure juice was on sale recently) I’m planning to try, and will probably through some cherries in a batch at some point because we have so many in the freezer.  I’m also thinking about getting some water kefir grains to make kefir soda, as the boys aren’t fans of the kombucha.  Once I get the last of the beets in from the garden, I’ll try some beet kvass, too.

So why the heck am I bothering with all of this?  Sure it tastes good, but it’s also good for you.  From Kombucha Cultures:

The intestinal microflora is carefully balanced. The human gut is home to around 400 different species of good and bad bugs. However, the good bugs have to share their environment with bad bugs such as Salmonella, E.Coli and Clostridium. The way to balance between good and bad bacteria is to maintain good digestive health, creating stable “microflora”. It is generally recommended that probiotics are taken on a daily basis to create this balance.
Prescription medicines, stress, sickness and especially antibiotics can all disrupt the bacterial balance because as well as killing off the bad bacteria they allso kill off the good bacteria. So you need to restore balance. Probiotics need to be taken regularly to maintain levels of good bacteria. Lactobacillus or lactic acid bacteria is a faciltative bacteria, named as such because most of its members convert lactose and other simple sugars to lactic acid. They are present in the gastrointestinal tract and the vagina. The production of lactic acid makes their environment acidic which inhibits the growth of some harmful bacteria. Large populations lactic acid-producing bacteria regulate the levels of friendly bacteria and reduce the levels of toxic pathogens which cause ill health. Resulting in Kombucha being one of the best skin treatments for acne and an arthritis health drink.
Even though the beverage is acidic, it does not cause any acidic condition in the stomach; it facilitates and noticeably promotes the digestion. The “yeasts” found in the Kombucha are of a beneficial kind. Organic Kombucha Tea is considered by some as a delicious ‘Cancer Foods’ or as a natural alternative ‘herbal nutrition supplement’.
By altering the pH of the large intestine to a slightly more acidic level, putrefactive bacteria (those bad for your health and causing foul wind production) tend to be inhibited or destroyed. There is no kombucha danger, It will cause no harm to have even ingested Kombucha mushroom. The pH is altered by active good bacteria producing high levels of lactic acid. The presence of this and other acids inhibit the growth of undesirable bacteria, molds, mold spores and yeast, particularly the Candida form.
Healthy guts equal a healthier body.  I’m a beginner, but I’m a believer.
You may also enjoy:

Water Kefir Versus Kombucha – What’s the difference between water kefir and kombucha?

Flavoring Kombucha and Kombucha Testimonials – Tips for flavoring kombucha and stories about how people I know have been helped by kombucha

Kombucha Q and A and More Flavoring Ideas- More flavoring ideas and all the Q and A from the comments in a more readable format

Holiday Kombucha Flavors – Ideas for holiday flavor blends such as pumpkin spice and cranberry collins

How to Make Coffee Kombucha – Using coffee instead of tea to brew kombucha

 This post has been added to Healthy2Day Wednesday at Day2Day Joys.
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Comments

  1. Michelle says

    Awesome post! I grew my own scoby this summer, but I have yet to brew a batch with it. (I need to!) I too like the flavored ones in the HFS ~ I love how you experimented with different flavors! *Ü*

  2. Laurie says

    You can do it, Michelle – just find a little time and the right brewing vessel. It's really much easier than a lot of the stuff I've tinkered with over the years. If you grew your own scoby that's probably the toughest part.

    I like my flavors, too. ;-) Sure, I drink water, but flavor and fizz are more fun.

  3. motherhen68 says

    I bought that same jar this summer when I made kombucha. I have to say though, all that work and no one liked it, not even me!

    My dh says that SCOBY looks like a placenta. :)

  4. Laurie says

    LOL – what recipe did you use, how long did you brew it and did you try a secondary brew? The longer it ages the more "funky" the flavor – thus the original "old sock" smell.

    I confess, I've got some Lipton that I'm using up to start with, but I've bought black tea to switch to after that's gone. I'll drink it after the initial brewing, but I much prefer the taste after brew number two. The flavor mellows significantly as it is aged during the second brewing. A shorter first brewing will give you a sweeter brew, too. I've been averaging 1 1/2 to two weeks on the first ferment, one day to up to two weeks on the second.

  5. Candy Jane says

    Great post on fun project – and thanks for the "healthy info", makes much more sense when you know WHY some of these funky things become popular. I'm loving my flavors, especially raspberry made from frozen from our garden. Thanks for my "baby", and I keep a spare in the frig…
    Now working on how to transport a SCOBY to Oregon in a few weeks, via suitcase. May have to overnight it with an icepack (?). The kombucha will be good for me and Mom both, over the winter months on the coast.

  6. Laurie says

    I know there are quite a few natural foodies out that way – I wonder if there is a way you could make contact and just get a scoby from someone? I know they generally do ship them with an icepack, although in our weather for short distances WE certainly wouldn't need them. This cold is ridiculous.

  7. KomBuChaCha says

    Hey, Laurie. Surprised you said you refrigerated your SCOBY. A lot of "authorities" say to not do that, and that it will no longer work after refrigeration… How long did you leave it in the fridge before you took the plunge?

    Vicki in Orlando

  8. KomBuChaCha says

    Candy Jane, the SCOBY does not need to be refrigerated; keeps just fine @ room temp. One way some folks transport is to cut the SCOBY into a long ribbon, then put in a small bottle of kombucha. (Same size as toiletries.) You don't really need a sizeable SCOBY to start the batch!

    Good luck!

  9. KomBuChaCha says

    Laurie, I've tried a couple of diff ways to get ginger flavor. First time I added 1T raw ginger, diced. Lots of carbonation, flavor was light. Next time I made a ginger tincture: lots of heat, but not as much flavor. So am thinking of combining those methods…

    BTW, I've seen where folks use either ginger syrup or candied ginger, w/ good results. Good luck!

    Vicki in Orlando

  10. Laurie says

    Hi Vicki.

    Well, I'm new at this, but have worked with bread yeast for a long time, so I would think some of the properties are similar. I probably had my scoby rolling around in the back of the fridge for a month or more, and when I started it up it was fat and frisky and took off without any trouble. The friend I got it from told me to keep my spare in the fridge, so I have.

    I always freeze or refrigerate my bread and brewer's yeast to extend its shelf life. It may go dormant, but comes back to life when it's warmed up. Since the scoby is bacteria and yeast, I would think the same principles would apply. Of course, I have just started brewing this year, so I may be wrong.

    I believe that most scobys that are shipped online are shipped with ice packs/cold packs. Maybe this is to avoid extreme high temps more than anything else? From my experience it seems both bacteria and yeast are more tolerant to cold than to extreme heat.

  11. Jasmine says

    Just tried Kombucha for the first time today. I did not like the flavor too much but about 15-25minutes after drinking I was highly impressed with how my body began to feel afterward. I was more alert, had a nice boost of energy and I felt good, balanced. Would love to drink this stuff daily but not interested in paying $4 a bottle! Hopefully I can find a Mother around here.

  12. Laurie says

    Jasmine – if you can't find a SCOBY online, you can grow your won from a bottle of tea. Here's a YouTube video on how to do it: http://www.youtube.com/watch?v=1A5Uur2OgDo Cultures for Health (link on sidebar) also sells SCOBYs. I believe they ship theirs dehydrated.

    The more you drink it, the more you get used to the taste. When you brew it yourself, you can adjust the flavorings and brewing time to change the flavor. Good luck!

  13. Rachel says

    I have been dying to make kombucha for a while now, and once I did I was gonna post about it! Thank you so much for linking up with Healthy 2day Wednesdays! I look forward to other posts you may add! Hope to see you there this week!

  14. says

    Great information here! Wow, your method of making the tea is much more detailed than ours. :-) It’s fun to read how other people do it. I heard about the Wild Fermentation book a few weeks ago and I was wondering if there was something in there about kombucha, I figured there must be!

    Thanks for sharing the health benefits too. I Googled for that information when I wrote my post about kombucha but couldn’t find a good source.

    So far, our favorite flavors are pomegranate and also pink lemonade (fun to experiment!). I like the idea of using whole fruits, I’ll have to try that. I wonder if pineapple or watermelon would be any good. Hummm… can’t wait to do more experimenting!

    The person we got our scoby from told us to refrigerate it too. She said it slows down the fermentation process.

    Here’s the post I wrote on my blog if you’re interested to see how we do it… Kombucha Tea

    Amy

  15. says

    Hi. I just found your blog a couple of days ago and I love it! I’m looking forward to trying the lotion bars and other homemade toiletries.

    I recently started a new blog after several months of not blogging and today I posted about our adventures in kombucha-making. I have to say, your audience is much more receptive to it than mine is. I still have a small readership at this point, but to a person they are not interested in even trying it, let alone making it.

    I can’t wait to try some of the flavorings you’ve mentioned!

    BTW, my husband loves pickles, so we bought several gallon pickle jars. He enjoys the pickles, then we use the jars for fermenting. :) They are more narrow than the depth of our liquid, but so far, they’ve been working just fine.

    • says

      Thanks for your kind words. :-)

      Kombucha tends to be an acquired taste – don’t lose heart. These posts have been on the internet for a long time, so the comments have come in over that period, not all at once. Maybe you’ll get some converts over time.

      I use gallon pickle jars, too, when I increase production. I was brewing for a friend for a while in addition to my own use. They work fine and the price is right. :-)

  16. Doola says

    Hi,
    Could you please share where you got those bottles from? I am going crazy looking for well sealing clear glass bottles – found some in stores that don’t seal well that I returned, and resorted to using Grolsch beer bottles for now.
    Thanks in advance!

  17. Lora says

    When I started making Kombucha several years ago I was told to never use metal utensils including the strainer because it would react with the metal. I see you used a metal strainer … any adverse effect on the kombucha? I too, was told to always keep my spare SCOBY mushroom/mother in the fridge. I keep them in mason jars. A good source for gallon jars is the deli of your grocery store, or a restaurant etc. You may not use a gallon of pickles or olives up quickly, but they will! Just ask them to save you one … or two!

    • says

      Lora – the kombucha never sits in contact with the strainer for long, so it hasn’t been a problem. Most storage recommendations I’ve come across since I started brewing recommend storing an extra scoby at room temperature, not refrigerated. Since I wrote this post, I’ve been blessed by friends and neighbors with plenty of gallon jars. :-)

  18. Heather says

    There is a water crock shop online (I think that is the name if it) for the water bottles to dispense from. They have a very convenient plastic spout. You can get the silicone lids to fit on top from amazon for $12. Make a gallon of tea now and then after I take out a half gallon (the crock holds 2.5 gallon and I have been doing a continuous brew for 3 years). The bottles in the cabinet make their own SCOBYs with no help, no air, no sugar. You can grind up SCOBYs and make a paste to put on cuts. Some people dehydrate their SCOBYs and feed them as dog treats.
    One chick in design school used her bathtub to make a giant SCOBY as the new one takes on whatever shape is at the top of the container. Then she dried it and used it to design an outfit! Pretty sure you cannot wear that in the rain. But it is some neat substance in that mushroom.

    My fave flavor was 2nd fermented with cinnamon sticks. Cardamom is good too.Strawberry seemed to make is super fizzy! I save glass bottles from Jones soda and such to refill.
    If you do not keep it sealed the gnats will have a field day. You will get a SCOBY with vinegar worms. Compost that and clean vessel w hot water. Start over.
    I let SCOBY’s stack up at the top of the water crock and they look like a stack of plate sized pancakes ( or giant amoebas). You can cut a tiny bit of SCOBY and add some soured brew to cook up a new batch. Typically one would bottle it up before it got to the overly sour vinegar stage.

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