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You are here: Home » Kitchen Notes » Keeping Stored and Finished Kombucha Air-Tight

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Keeping Stored and Finished Kombucha Air-Tight

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jug-lid-wax-paperI keep 7 gallons of Kombucha going at all times (see my recipe). There are either 3 jars that have a younger batch in them and 4 jars with an older batch going, or vice versa. Does that make sense? This keeps us in constant supply.

But it always means that when a batch is done, I have 3 or 4 gallons to somehow store so they stay just right in sweetness, kick and taste. In other words, I don’t want the Kombucha to go sour. Even though you can’t see them, the strained and “finished” Kombucha contains microscopic little pieces of the mother scoby — and they will continue to grow and feed on the remaining sugars in the Kombucha as long as the conditions are right.

What conditions are those? Warmth, sugar and oxygen. Without one of them, the scoby cannot grow and the Kombucha will maintain itself at its current level of sweetness/taste. You can see now that it is very important to store the Kombucha in air-tight containers if you wish to keep it tasty.

kombucha_jug_carafeI use gallon glass jugs for storing my finished Kombucha. At first, the jugs were working great. When I would open a jar to fill a carafe or a glass, I would hear a satisfying release of pressure, letting me know that the jar had been sealed tightly, not allowing oxygen to travel in and out of the jar. However, over time, I have been hearing less and less of that satisfying “whoosh” — and consequently, our Kombucha started turning sour! Those little scobys were somehow getting oxygen and eating up all the sugar. How could they? 😉

What I think happened is that the lids’ wax linings wore down over time, leaving gaps where air could pass. To solve this I have been tearing off 3 or 4 squares of natural wax paper and putting it between the lid and jar. I tighten the lid as tightly as I can. This seems to be working on all but one of the jars. (See top photo.)

Here’s another idea I have, but haven’t tried yet: melt wax, pour it in the inverted lid, rotate the lid around to distribute the wax, and let it harden. I don’t know how often this would be necessary but perhaps it is a better solution than using the wax paper lid liners?

If you have any other ideas for me, please share! Anybody else have this experience? If you’ve just begun making/enjoying Kombucha, how’s it going for you? Does anybody else feel the heavy-limbs/have-to-lay-down symptoms I do?

I thought at one point that I’d adjusted to the Kombucha’s blood pressure lowering effects, but now I’m back to laying down after enjoying a glass. A good reason for me to take a rest!

Note — I received an email from a friend yesterday. After reading this post, she sweetly reminded me that I could have a potential explosion on my hand from all the built up pressure in the bottles. She is right! However, since we drink the Kombucha in less than a week, I think I’m okay with the risk. I haven’t had any explosions yet! And I do think my jars are not completely airtight. So… please don’t follow my advice for storing the K-Tea in airtight jars if you’re not planning to drink the Kombucha right away. If you know you’re not going to be drinking it soon, the safest place to store it is the refrigerator, as this will stop the scoby’s growth altogether — and prevent explosions from built-up pressure!

Want to make your own Kombucha at home, but need a scoby (starter)? Here’s the one I recommend.

We only recommend products and services we wholeheartedly endorse. This post may contain special links through which we earn a small commission if you make a purchase (though your price is the same).

Posted in: Kitchen Notes

About Wardee Harmon

Wardee lives in the Boise area of Idaho with her dear family. She's the lead teacher and founder of the Eat God's Way online cooking program as well as the author of Fermenting, Sourdough A to Z, and other traditional cooking books. Eat God's Way helps families get healthier and happier using cooking methods and ingredients from Bible Times like sourdough, culturing, and ancient grains.

Reader Interactions

Comments

  1. Tiffany says

    January 21, 2009 at 4:38 pm

    Wardee,
    Hi, I was just wondering what the benefits are of drinking kombucha? Maybe you have posted that before?
    Thanks,
    Tiffany

    Reply
  2. Mary says

    January 21, 2009 at 7:04 pm

    We are still enjoying our kombucha. I keep 4 gallons going – rotating in 2s. I’ve shared with several people your “grandbaby” scobies. I gave some recently to a friend who had her own and thought she had killed them. I gave her a quart of finished tea and several fat scobies. She drank some of the finished tea and called to tell me it was excellent – better than her own. I gave you all the credit. I think the difference may be using the ORGANIC tea bags. Your recipe also uses more tea bags than some I’ve seen on the internet and that may be a factor too. Anywho – your kombucha tea recipe ROCKS! The health food store here has a newsletter and it had a really good article about kombucha.

    Reply
  3. Wardee says

    January 22, 2009 at 8:30 am

    Tiffany — No, I haven’t really shared the benefits. I’m so young to K-Tea brewing that other than sharing my recipe, I don’t feel too much of an expert. I’m a learner and a believer. If you search on google for “Kombucha Benefits” you will see 100s of benefits (mostly experiential).

    The ones I believe: beneficial effects on the digestive system, (encouraging the growth of good bowel flora); it being an alkaline-producing food to balance acidity; stabilization of blood sugars (which we have experienced). I would love to mail you one of my scoby to get your own K-Tea going.

    Mary — You’re a Kombucha evangelist! 😀 How interesting to hear that my recipe uses more tea bags than others, and that you think this gives a good flavor. I must credit my friend Jami, who got me going and told me how many tea bags to use. Have you tried Organic Jasmine Green Tea for your K-Tea? That makes the BEST K-Tea!

    Everyone — I received an email from a friend yesterday. After reading this post, she wrote to sweetly remind me that I could have a potential explosion on my hands from all the built-up pressure in the bottles. She is right! However, since we drink the Kombucha in less than a week, I think I’m okay with the risk. I haven’t had any explosions yet! And I do think my jars are not completely airtight.

    So… please don’t follow my advice for storing the K-Tea in airtight jars if you’re not planning to drink the Kombucha right away. If you know you’re not going to be drinking it soon, the safest place to store it is the refrigerator, as this will stop the scoby’s growth altogether — and prevent explosions from built-up pressure!

    Reply
    • Penny says

      October 11, 2021 at 9:03 am

      I recently had a kombucha explosion. I was using empty maple syrup bottles with the flip lids. Those bottles were apparently not made for drinks that carbonate. I went back to using empty glass pop bottles the the flip lid.

      Reply
      • Peggy says

        October 11, 2021 at 11:44 am

        So sorry to hear…oh the fun lessons we learn fermenting. 🙂
        ~Peggy, TCS Customer Success Team

        Reply
  4. Lisa Davis says

    January 30, 2009 at 1:52 am

    Does anyone know where I can get a scoby? I drank K-Tea years ago and would love to get back into it. I’m also interested in trying your tea recipe sounds yummy! Thanks!
    L.D.

    Reply
    • Wardee says

      January 30, 2009 at 9:40 am

      Lisa, I would be happy to share one of mine, if you live in the U.S. You would only need reimburse me for Priority Mail shipping of $4.95. Use the contact form to send me a message with your full name and address.

      I can’t ship finished K-tea because it will leak all over. So you’ll have to buy a bottle of that to use to start the recipe off.

      Reply
    • Carol says

      January 20, 2019 at 1:31 am

      Check Facebook marketplace for your area.

      Reply
  5. Amy says

    February 19, 2009 at 12:33 am

    I’m just curious, why don’t you refrigerate the stored stuff without scoby you are keeping? It slows the fermentation way down so it won’t go sour.

    Maybe it is because you are doing such a quantity and it would take up too much space in the fridge ? 🙂

    I read that last part where you advise people to put it in the fridge if they aren’t going to drink it but was just wondering why you didn’t, if there was a special reason… new to kombucha!

    Thanks,

    Amy

    Reply
    • Wardee says

      February 19, 2009 at 7:00 am

      Amy, thanks for asking – two reasons. 1) Just as you said, too much to keep in the fridge, and 2) It goes “flat” in the fridge, no natural carbonation. How exciting that you’re getting into K-Tea!

      Reply
  6. Robert says

    October 30, 2009 at 8:44 am

    I’m seeing this article a little late but thought I’d comment on the issue you’re having getting your jars to seal and the possible explosion problem.
    First, if these are normal mason jars, you can buy the rings and lids that are used for home canning. The lids (the small flat portion) can be replaced as needed with a new one with a new gummy rim so that you keep that seal tight.
    Second, i’m a home brewer and so would recommend using beer bottles to store your K Tea in. You can get large bottles (or even use champagne bottles). An inexpensive capper will allow you to cap and seal these bottles very easily. Since these bottles are made to withstand high pressures of beer or champagne, they will have no problem at all withstanding a little pressure from the K Tea…

    Reply
  7. Grace says

    April 27, 2012 at 7:33 pm

    I use grolsh type bottles as well as maison jars “leak” (since you dont really seal them as its raw) … keeping them in this type of bottles assures that nothing “leaks” out even if refrigerated … in fact i have noticed that some at the end of my patch get even more fizziness and carbonation WHILE in refrigerator … i also add 1/4C of organic juice (apple – you can use whatever but apple seams like logical choice) and keep it out initially 2-3 days and than refrigerate … thus producing fizziness and than stopping/slowing it down in the fridge … works beautifully …

    Reply
  8. Shelley says

    September 28, 2012 at 2:59 pm

    I’m new at making this amazing tea. I have a glass gallon jar for storing it in, but all I have is a metal lid for that container. Can I use that metal lid and put a barrier between it and the bottle, (ie a paper towel or wax paper) or should I not use a metal lid at all?

    Thanks,
    Shelley

    Reply
    • Wardee says

      September 29, 2012 at 9:30 am

      Shelley — You can use a metal lid. The tea doesn’t touch it. If it makes you feel better to put a barrier between, go ahead. I usually don’t. 🙂

      Reply
  9. Allegra says

    March 4, 2014 at 6:30 pm

    We store our finished kombucha in flip top containers with wire bails, you can purchase them from local brew your own wine or beer place, Ikea, and most kitchen supply stores. The great thing about these jars is that they come in various sizes, we have ones that are 350ml all the way up to 1500ml (I am Canadian so I am not sure what that is in gallons/ounces sorry) We have found that this makes all the difference in the fizziness and we have stored bolltes in our cold room for several weeks in these bottles and have had no problems with our brew turning sour, and also no problems with exploding bottles either. As for the tea, we use Oolong tea, we buy it organic and in bulk boxes from our local Asian grocery store, and since we switched to it we have had amazing results with our brewing!

    Reply
  10. Valerie says

    January 28, 2017 at 4:41 pm

    I got a scoby from a cooking class four days ago, and I accidentally forgot to unscrew the lid, and so it was sealed tight on the counter. How do I know if my scoby is still safe to use?

    Reply
    • Millie Copper says

      January 31, 2017 at 9:56 am

      Hi Valerie,

      It should still be fine to use. 🙂

      Millie
      Traditional Cooking School Support

      Reply
  11. Ana says

    May 28, 2018 at 9:06 pm

    Have you ever tried to put Larginine, coral calcium Vitamnin B and some other stuff to stabilize your Kombucha?

    Reply
    • Danielle says

      May 29, 2018 at 7:44 am

      Hi Ana,

      We have not added any of these to kombucha.

      ~Danielle, TCS Customer Success Team

      Reply

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