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Have you ever wondered how to brew kombucha at home? This easy guide will teach you how to transform tea into kombucha in just a few easy steps! This is the most popular guide to brewing kombucha on the internet and has helped over 10,000 home brewers make kombucha in kitchens around the world. Yours next?

Girl in yellow overalls holding bottle of kombucha.
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It’s a big day everyone! The day your intestinal microbiota have been begging you for. The day you say goodbye to expensive store-bought kombucha. The day you become a brewmaster!

The goal of this guide is to be your one stop shop for homemade kombucha brewage, from SCOBY-less to fermented perfection. No hopping around the internet or buying unnecessary gear. No fuss. No confusion. Because making homemade kombucha is so simple, and I hope after reading this you’ll give it a whirl! Let’s hop right to it.

Smiling woman holding two glass bottles filled with orange tepache, standing indoors with shelves and jars in the background.

Meet The Brewer

Hey friends, I’m Sarah! I’m in love with home-brewing kombucha and have helped thousands of people all over the world make kombucha in their homes! I created an entire website dedicated to brewing kombucha called Brew Buch, and run an online community of over 50,000 brewers called Kickass Kombucha Brewers (I’d love for you to join)! If you have any questions about brewing, please drop a comment at the end of this post – I personally read and respond to them daily!

The process looks like this:

This post will go into detail about each step in the process of making kombucha. For succinct instructions and metric measurements, jump to the printable recipe card at the end of this post. The general order of things goes something like this (you can jump around this tutorial by clicking the links below):

  1. Make SCOBY (1 to 4 weeks) – to make the “mother”
  2. First Fermentation (6 to 10 days) – to make the actual kombucha
  3. Second Fermentation (3 to 10 days) – to carbonate the kombucha
@liveeatlearn

It’s Day 3 of Fermentation Week! Let’s make kombucha 🍺 Have you ever wondered how to brew kombucha at home? My easy guide will teach you how to transform tea into kombucha in just a few easy steps! This is the most popular guide to brewing kombucha on the internet and has helped over 10,000 home brewers make kombucha in kitchens around the world. Yours next? (The full guide is at the link in my profile!) #kombucha #kombuchalover #kombuchabrewing #kombuchaontap #fermentationstation #FermentationMagic #lactofermentation #FermentationFun #fermentationworkshop #fermentationisfun

♬ Piel De Azúcar – 𝙕𝙘 𝙢𝙪𝙨𝙞𝙘 🎧

“Excellent recipe. I’ve tried ten or more online for comparison and this one has the best flavor balance. Not at all vinegary and not too sweet. Will be using for my base from now on.” -Katherine

Before we start, here are some general notes that are consistent throughout the whole homemade kombucha process.

  • No metal or plastic containers. Metal can react with the acidic kombucha, while plastic can house nasty bacteria.
  • Clean is key. A recurring theme in kombucha brewing is that everything must be clean! We’re creating the perfect environment for good bacterial growth, but if a bad bacteria sneaks in it could ruin your batch (and make you pretty sick).
  • Temperature plays a big role. Fermentation goes a bit quicker in warmer temperatures and a bit slower in colder.
  • No mold zone. If you see any mold growing on your SCOBY or in the tea (which I understand can be difficult to discern from the hideous SCOBY but will generally be green, white, or black), then toss your whole batch.
Girl in yellow overalls next to many bottles of kombucha.

Step 1: How to make a kombucha SCOBY

The SCOBY (symbiotic culture of bacteria and yeast) is the mother of the kombucha, providing bacteria and yeast to ferment the sweet tea, protecting the tea from outside contaminants, and providing a loose seal to keep a bit of the carbonation in. Yes, it’s hideous…but it’s the very essence of kombucha! And the best part? You can make one at home! You’ll need:

  • Water: Tap water is just fine here!
  • White Sugar: Feeds the yeast and bacteria—don’t sub with other sweeteners.
  • Black Tea: Provides nutrients for fermentation. Black tea works best for a strong, healthy SCOBY.
  • Raw, unflavored kombucha: Contains live cultures that kickstart the SCOBY growth. Look for one with sediment at the bottom!

To make a SCOBY, you’ll brew sweet black tea, let it cool, then mix in raw kombucha. Cover and ferment at room temperature for 1 to 4 weeks until a ¼-inch SCOBY forms. Keep the SCOBY in its tea until you’re ready to brew your first batch! Jump to recipe for printable instructions.

Girl holding a bottle of kombucha.

Which brand Is best?

Our tried and tested store-bought brand is the GT’s “Pure”. You can find it in most natural food stores.

Girl in yellow overalls holding a kombucha SCOBY.

Important Notes For Making A SCOBY

  • Only black tea. Similarly, the SCOBY doesn’t grow as well with green or fruity teas. By all means, once your SCOBY is big and strong, you can use green tea, but for now, stick with black. The SCOBY doesn’t like decaf tea and will not grow as well if fed it (SCOBY = my spirit animal).
  • No honey. Honey can contain botulism bacteria that, when grown exponentially as bacteria and yeast tend to do in kombucha, can be dangerous.
  • Don’t mess with it! You won’t see anything but a few bubbles in the first few days. But then one day a thin, translucent layer will form, eventually thickening into a full on SCOBY.
Girl holding a kombucha SCOBY.

Step 2: The first fermentation

So you’ve got a newbie SCOBY and you’re ready to get this komboo-choo train rollin’. This first fermentation is where you actually make the kombucha. You’ll need:

  • Water: Tap is fine!
  • White Sugar: Feeds the SCOBY and bacteria during fermentation.
  • Black or green tea: Black tea is most common, but green tea adds a lighter flavor.
  • Unflavored kombucha: This has the live cultures and acidity needed to start your fermentation.
  • SCOBY: Your live culture pellicle.

To do the first fermentation, you’ll brew sweet tea, cool it, and add it to a jar with your SCOBY and starter kombucha. Cover and ferment at room temp for 6–10 days, tasting around day 6. Once it’s slightly tangy and not too sweet, reserve 2 cups as your starter and move the rest to second fermentation. Jump to recipe for printable instructions.

First Fermentation Tips

  • In this step, unlike in the making of the SCOBY, you can use other teas besides black. Feel free to experiment with green, white, oolong, or combinations of them. Fruit teas should be mixed with a few black tea bags to ensure the SCOBY mama gets what she needs to thrive.
  • Once the SCOBY gets to be about an inch thick, peel off a few layers to create a second SCOBY (you can share the love and gift this to a friend!)
Girl in yellow overalls next to many bottles of kombucha.

Step 3: The Second Fermentation

The final step and negotiably the best part of the process! The second fermentation is where the real magic happens. It’s where you can play around with sweet, fruity kombucha flavors that will not only make your homemade kombucha taste better than store-bought, but will carbonate the kombucha! You’ll need:

  • Homemade kombucha from the first fermentation
  • Sweetener (fruit, honey, or sugar). Here are a few ideas per 1 cup kombucha:
    • 1 to 2 Tbsp mashed fruit or fruit juice
    • 1 to 2 tsp honey
    • a piece of candied ginger

Strain the kombucha and bottle it with your chosen sweetener, leaving some headspace. Let it ferment at room temperature for 3 to 10 days to build fizz, then strain out fruit if needed and refrigerate to chill and stop fermentation. Jump to recipe for printable instructions.

Second fermentation tips

  • The more sugar/fruit you add, the faster the kombucha will ferment and become carbonated.
  • Your jars can explode if the pressure becomes too high! For your first few batches while you’re still getting the hang of how kombucha reacts to your environment, bottle a portion of it in a plastic bottle. This will act as a gauge for how the others are doing. When the plastic bottle is rock solid, the rest are probably done. “Burp” them by opening each to release some pressure, then place them in the refrigerator to slow fermentation.
How to open a bottle of kombucha.
Worried about your bottles turning into volcanoes when you open them? You can place them over a large bowl and cover them with a baggie while opening them. This will contain any potential mess!
Girl in yellow overalls holding bottle of kombucha.
Questions? Leave a comment below! Sarah (food scientist and head brewer around here) personally answers comments daily.

The Simple Guide to Kickass Kombucha

4.92 from 391 ratings
Cook: 21 days
Total: 21 days
Servings: 16 cups
This is the most popular guide to brewing kombucha on the internet and has helped over 10,000 home brewers make kombucha in their kitchens! Question? Drop a comment below this recipe – Sarah personally answers comments daily!

Equipment

Ingredients 

Making a SCOBY

  • 7 cups water, 1.6 L
  • 4 bags black tea, or 1 Tbsp loose tea
  • ½ cup white sugar, 100 g
  • 1 cup unflavored kombucha, this should be unpasteurized, unflavored store-bought kombucha, 235 mL

First Fermentation

  • 14 cups water, 3.5 quarts, 3.3 L
  • 8 bags black or green tea, or 2 Tbsp loose leaf
  • 1 cup white sugar, 200 g
  • 2 cups unflavored kombucha, from a previous batch or store-bought kombucha, 470 mL
  • 1 SCOBY

Second Fermentation

  • Kombucha, from the first fermentation
  • Sweetener or flavor
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Instructions 

Making Kombucha SCOBY

  • Make Tea: Bring 7 cups water to a boil in a clean pot. Remove from heat and add 4 bags black tea. Allow tea to steep for about 15 minutes. Remove tea and stir in ½ cup white sugar. Let tea cool to room temperature.
    Alternatively, boil only 2 cups of water and add the remaining 5 cups of cold water once the tea has steeped and sugar has been added. This will quicken the process.
    Making sweet tea.
  • Add Starter: Add 1 cup unflavored kombucha then pour everything into a large glass jar.
    Adding starter kombucha to a pot.
  • Ferment: Cover with a clean cloth and secure with a rubber band. Set somewhere dark and room temperature (70-75°F, 21-24°C) for 1 to 4 weeks, until a ¼ inch (½ cm) SCOBY has formed.
    Girl holding a kombucha SCOBY.

First Fermentation

  • Make Tea: Bring 14 cups water to a boil in a clean pot. Remove from heat and add 8 bags black or green tea. Allow tea to steep for about 15 minutes. Remove tea and stir in 1 cup white sugar. Let tea cool to room temperature.
    Alternatively to quicken this up, boil only 4 cups of water and add the remaining 10 cups of cold water once tea has steeped and sugar has been added.
    Making sweet tea.
  • Combine With Starter + SCOBY: If your SCOBY is still in the jar you made it in, use a clean spoon to push it down into the tea, then pour out all but 2 cups of the tea that’s in that jar (you can bottle the remaining tea to keep as a strong starter kombucha). Pour in your freshly made cooled tea.
    Pouring kombucha into jar with a SCOBY.
  • Ferment: Cover with a clean cloth and secure with a rubber band. Set somewhere dark and room temperature (70-75°F, 21-24°C) for anywhere from 6 to 10 days. Begin tasting the tea at about 6 days. It should be mildly sweet and slightly vinegary when finished.
    The longer the tea ferments, the more sugar molecules will be eaten up, the less sweet it will be. This process will go faster if it is warm in your house.
    Jar of kombucha in the first fermentation.
  • And Repeat: Reserve 2 cups from this batch to use as starter kombucha for your next batch (just leave it in the jar with the SCOBY). The rest can move into the second fermentation!
    Girl in yellow overalls next to many bottles of kombucha.

Second Fermentation

  • Flavor: Add your desired flavors to each bottle, then funnel kombucha into bottles, leaving about 1 inch at the top. Seal each shut.
    Adding flavor to kombucha.
  • Ferment: Let ferment somewhere dark and room temperature for 3 to 10 days.
    This process will go faster if it is warm in your house. Carefully open bottles to prevent volcanoes. You can do this over a bowl with a baggie over the top just in case!
    Opening a bottle of kombucha.
  • Serve: If desired, strain out flavorings before serving. Place bottles in the fridge to slow the carbonation process and to chill before serving.
    Pouring a bottle of kombucha.

Nutrition

Serving: 1cup (depends on fermentation length) | Calories: 50kcal | Carbohydrates: 12g | Sodium: 13mg | Sugar: 12g

Nutrition information calculated by Sarah Bond, degreed nutritionist.

did you make this?Leave a comment below and tag @liveeatlearn on social media! I love seeing what you’ve made!

Supplies Needed for Making Kombucha

  • Large Glass Jug: It should hold at least 1 gallon (buy on Amazon or in most homeware stores)
  • Fermentation Bottles: These bottles have a tight seal specifically designed to keep the carbonation in (hellooo fizz!) (buy flip-top bottles here or collect and reuse GT’s bottles)
Carbo cap kombucha lids.
You can also use these carbonation lids to prevent explosions. They allow your brew to get to a predetermined PSI and let any excess pressure release automatically.

About the gear

Above is a list of the supplies needed to make kombucha. These are affiliate links, meaning I may earn a commission if you make a purchase. I’ve only included products I know and trust, and have included multiple buying options for each. I personally use and love the products from Kombucha.com. For 10% off their online store, comment below and I’ll get our secret code to you!

Eat vegetarian cookbook.

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2,006 Comments

  1. Heather says:

    No worries Sarah! I did add sweeter, one honey, one candied ginger and one smashed blueberries. Today I cracked them open and there was a tiny bit of fizz, but not much. They taste ok, so I will probably enjoy them and try again with the next batch making sure the lids are super tight.

    1. Sarah says:

      Oh good! So you’re on the right track. Yep, next time just try to make them as tight as possible and perhaps finder a warmer place to put them if possible 🙂 Happy brewing!

  2. Jenny says:

    Hello there and Thank you for this awesome step by step instructions. I am making my 1st batch. My Scoby is about ready and I will be onto my next step. The question I have is for the last step when putting the kombocha into individual bottles. Can I just put it all into a large glass jar too? To just make 1 large batch. For a party. Thank you again for sharing!! Happy Day to you!

    1. Sarah says:

      Hi Jenny, great question! As long as the bottle is meant for carbonation (like these 32 oz growlers) then it should carbonate just fine! Any bigger than this and you run the risk of it not carbonating properly (though you could carbonate them in these then transfer to large pitchers right before serving).

  3. Surabhi says:

    Hi Sarah,

    Thank you for such a detailed recipe and beautiful presentation. I tried your recipe with an older SCOBY and grew another! I’m always fascinated with growing cultures, but this is my frist kombucha attempt. I had some questions but most of them have already been answered in comments above. But, what happens if I do not add fruit juice or candied ginger?

    1. Sarah says:

      Hi Surabhi, happy the comments could answer your questions! If you don’t add fruit juice or fruit the kombucha won’t carbonate as well. It needs a little extra sugar so the carbonation process can take place 😀

  4. Dave says:

    Awesome instructions!
    I grew a beautiful SCOBY! I wasn’t expecting the texture!
    I must have had a problem with my 1st fermentation. Everything was going great but on my 7th day I noticed a film on the top of the tea. It almost looked like a new scoby but it was white with a slight blue tinge. From what I could decent, I figured it must have been mould & best to start again.
    I kept things very clean but apparently not clean enough!
    Any tips would be much appreciated!

    1. Sarah says:

      Hi Dave! Take a look at some of these photos, it may not be mold. Mold is usually dry and fuzzy, but it sounds like yours is a wet film? Hopefully that article will help shed some light on it for you! And as much as it sucks, if you’re really in doubt, throw it out.

      Some tips that may help prevent mold growth next time: try to increase air flow around your kombucha and perhaps add a few tablespoons of distilled white vinegar (to increase acidity). Good luck and happy brewing! 😀

  5. Terri says:

    Good morning, I’m making my bucha today! Very excited, have you used palm sugar or cane sugar? Or do you only use white? I used cane for first fermentation now I only have palm, should I hit the store for white?

    1. Sarah says:

      I’ve only ever used white sugar, but I believe you can use other types. Kombucha Kamp has a really handy article about the kinds of sugar you can use here, and it looks like they’ve had success with palm sugar 😀

  6. yonita Ward says:

    Thanks, it sounds great.
    Well it also sounds like making yogurt from a live white plant that looked a bit like a cawliflower that you had to wash once it had made the yogurt and it grew and became too big and one gave pieces away to friends. I think they make yogurt that way professionally > I did it for a while but gave it up eventually.
    I love the idea of trying to make my own and thank you in advance that I will get the recipe.
    I like the idea of the sweets. Where would I buy them. Do they still have the same effect on the gut as the kombucha drink has?

  7. Jennifer says:

    So I’m new to the Kombucha community. I acquired a beautiful SCOBY and am in the process of growing another. The question is where do I get starter liquid for the first fermentation? Articles I’ve read state the SCOBY liquid is too vinegary. Local stores only have flavored, pasturized teas. Any tips would be appreciated.

    1. Sarah says:

      Hi Jennifer! I haven’t personally tried it, but I’ve heard of many kombucha-ers use vinegar as that starter tea with success. Or if you’re nearby the person who gave you the SCOBY, you could ask them for some of their tea from a recent batch!

  8. Lauren says:

    This was actually one of the more complicated guides to making kombucha that I have read. It’s not inaccurate though! Thanks! lol

  9. Birdie says:

    I’m new to the world of making my own fermented foods so am trying to make kombucha for the first time. Thanks for the great information. I had never tried kombucha before so I went to New Seasons. The guy there did a tasting thing with me and let me try several brands and favors. It was a lot of fun and I found out I love it. Trying to kick a soda habit and think this will help.

    1. Sarah says:

      Kombucha is awesome for kicking the soda habit! Let me know if you run into any questions as you get started! 😀

  10. Jacqueline Bellavance says:

    Thanks for the great info on how tomake kumbucha. I am looking forward to making my first batch. I have made the scoby, so will be doing the 1st fermentation.

    1. Sarah says:

      You’re very welcome and congrats on your SCOBY! Let me know if you run into any questions 😀