How Much Kombucha Should You Drink A Day?

So you’ve fallen in love with kombucha and now you’re wondering, how much kombucha should you drink a day? How much is too much? Is there a limit? We’re answering everything you need to know about your kombucha daily dose!

Whether you’re brewing your own kombucha or drinking bottles of store bought, if you’re reading this you probably love kombucha.

So much so that you’ve come to wonder if there’s a limit to how much kombucha you should be drinking a day.

And it’s a great question! Kombucha is a living fermentation made by inoculating bacteria and yeast in sweet tea to create a fizzy, fermented beverage. All that to say, kombucha can have side effects that you should be aware of when deciding how much kombucha you should be drinking per day.

Bottles and jugs of kombucha on a wooden floor with white background

SO how much should you be drinking?

There is no scientific consensus on how much kombucha you should drink per day. A 1995 Center for Disease Control report mentioned recommendation of 4 oz kombucha up to 3 times per day, though no current recommendations have been made.

Based on years of consuming kombucha and being in the home brewing community, we recommend not drinking more than 16 oz of kombucha per day – about the amount you would find in a bottle of store bought kombucha.

But here’s the thing – the amount of kombucha you drink per day should depend on you.

Are you used to probiotics? Kombucha is packed with probiotics, which can cause GI distress until you get used to it. If you’re not used to drinking kombucha, we recommend that you start at 2 oz per day, then increase 1 oz per day.

How much sugar do you consume? While kombucha contains relatively low amounts of sugar (roughly the same amount as fruit juice), you may choose to drink less if you usually don’t consume much sugar.

Closeup photo of white sugar granules

Are you sensitive to caffeine? There are about 10 mg of caffeine per 8 ounces of kombucha, which can cause jitters, nausea, nervousness, and digestive distress for those who aren’t used to it.

Are you sensitive to alcohol? Homemade kombucha generally contains 0.5% to 3% ABV. Keep this in mind if you’re sensitive or allergic to alcohol.

Are you pregnant or breastfeeding? Kombucha is unpasteurized, so we don’t recommend women who are pregnant or breastfeeding consume kombucha.

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42 thoughts on “How Much Kombucha Should You Drink A Day?”

  1. I’ve started making my own kombucha and everything seems to go well except that the scoby is so ugly: shapeless, fringy 🙄 I see in the pictures published by other people beautiful, round white scoby and I wonder 🤔

  2. Wow! This is the most straightforward information I have found anywhere! My sisters love kombucha, so I’ll share your website. Thanks so much!

  3. My SCOBY is getting quite large in my gallon glass brewing container. I know I need to divide it but which part should I discard, the top half or the bottom half that is floating next to the liquid?

  4. Thanks so much for all the help! I’m on my 4th batch and loving it. I make 1/2 gallon at a time so that I can lift the jar! I have made several combination flavors since it’s summer and all the great fruit is out there. The weather has been much warmer during the day lately and cools off to 50-60 degrees at night. Temps haven’t been a problem before but now I’m wondering. This batch has been in first fermentation for 4 days and it’s not at all vinegary. It tastes fine but I like some zip. I wonder if it’s because all the sugar got “eaten” in the heat? I couldn’t find any info on that on your site. Any suggestions? Is there any reason not to drink it? Just use it this way and add flavors as before? Thanks!

    • First ferm can take a while, I’d give it another 4 days before doing anything with it! Usually if all the sugar has been consumed the brew will have some kick to it.

  5. Are the store bought kombuchas typically pasteurized due to regulations or are they raw? I have 2 batches going all the time (one regular and one boozy) so always have ample homebrews. But curious if store is raw or not. I also have tried a few high ABV store brews but they do not list probiotics on the cans.

  6. I drink 2 bottles of 16 oz store bought organic kombucha on a daily basis. 35 cal per bottle. I’d drink more if I could afford it. Bottom line, if store bought booch is no different than home made, I don’t see why we are talking about limits.

  7. The longer it brews, the more sugar eaten. 2f, burp after 4 days, let it go to 8 – 10 days total. Try ginger lemon w/ a touch of honey…low sugar, tastes great

  8. Yes – Good question. Just bought my first bottle of Bubby Rose. I am concerned about GI issues. Maybe a 2oz try at first and 4 tomorrow and continue having a bit more as the week goes by ?

  9. The initial fermented tea you mentioned contains kiwi juice and 12 grams of sugar per serving. That is a lot and I was hoping for less sugar in my homemade kombucha. One gallon of water, one cup of sugar, 7 organic black tea bags and one organic earl grey (could use 2) and the mushroom floating in one cup of last brew. I let it ferment 14-16 days. The earl grey black tea adds a mild sweet, fragrance. I never do second fermentation for health reasons and more sugar present. I wonder how much sugar is left though. The tea tastes a little lemony and very mild and a wonderful thirst quencher. Do you think that organic teabags are essential because black (although fermented itself) might contain pesticides/herbicides and fungicides? Oh, and since we are seniors, the bit of alcohol is good for us 🙂

    • I generally don’t worry about using organic, but it couldn’t hurt to use organic! And be cautious of earl gray, which has added oils which can influence the fermentation.

    • I’ve read that flavored teas should be avoided. The first few batches may be ok but the scoby may degrade much faster in subsequent batches. Earl gray contains orange peel oils/flavoring. As for the sugar levels— the year and bacteria are feeding on the sugar. This is why red wine is not as sweet as grape juice.

  10. Hi,

    I looked over the site but can’t see an answer… I have recently switched from water kefir to Kombucha, just on my 3rd batch. I am used to drinking the water kefir straight after the 1st fermentation, which I have been doing with the kombucha, but after reading through your pages am I supposed to wait till after the second fermentation to get more beneifts, or can I drink it after the first? Thank you

  11. Trying to do Keto diet and keep carbs under 20-25. I brew my own and make about 6 twelve oz. bottles at a time. First fermentation I use 3/4 cup white sugar and usually allow 7-10 days to ferment. Second fermentation I use 1 tsp sugar or fruit jam to carbonate and again allow 7-10 days to carbonate. How can I determine how many calories/carbs is in each 12 oz. bottle without buying a fancy measuring device?

  12. I’m a complete novice and due to continuous stomach issues I have been told Kombucha would be good for me. Any ideas which ones to use, preferably the less sugar the better.

    • Start with small amount (4 oz a day or so) and work your way up. And perhaps start with an unflavored version just to be sure you can handle it at first!

  13. If its basically a probiotics and has lots of healthy bacteria. why is it not recommended for pregnant women? I took probiotics when i was pregnant.

    • Because it is a raw fermentation, so there is potential for bad bacteria to also slip in. Probiotic pills or supplements are usually much more controlled than home brewed kombucha!

  14. I’m finding my kombucha a bit too delicious ! I can find myself drinking up to 3 16oz. In a day ! I haven’t had any effects yet but the more I research it seems I’m over doing it .

  15. Hi I track my micros and food intake and I experiment with different flavors, currently ginger, turmeric and lemon juice are my favorite. I was wondering – do you know what the nutritional information is on kombucha after the first fermentation? From that I can determine what it is for the bottles after second fermentation.