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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?

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.

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

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.

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.

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.

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!)

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.



The Simple Guide to Kickass Kombucha
Equipment
- Glass Jar (1 gallon or larger)
- Clean Cloth (like a dish cloth or paper towels)
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
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.

- Add Starter: Add 1 cup unflavored kombucha then pour everything into a large glass jar.

- 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.

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.

- 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.

- 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.

- 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!

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.

- 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!

- Serve: If desired, strain out flavorings before serving. Place bottles in the fridge to slow the carbonation process and to chill before serving.

Nutrition
Nutrition information calculated by Sarah Bond, degreed nutritionist.
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)

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!















Can I F2 with sugar only?
Yes!
Greetings,
Peter here in Arniston.
I have made kombucha before, but a good 5 years ago.
I have been given a scoby m
By a neighbour, but have started once again to make my own.
I may be needing the flip bottles you mention.
Do u have a price list?
I like your site, & will follow you,
Regards
Peter
Hi Peter! Here is my list of recommended gear – happy brewing! 😀
Hello. I was given two skobies a few months ago. I followed all the steps you mention here. The skobies multiplied a lot. I have only been able to share two skobies with a friend. They kept multiplying and I didn’t have the heart to throw any away. So my first question is: How can I recycle or use the skobies for a different purpose? I have a dog. May I mix a skobie in her food? Is it possible to store skobies in the freezer for months as I do with kefir?
Second issue: I had to go out of town for extra time and my tall jar packed with skobies has been fermenting for almost twenty days. I know that the longer they ferment and the more skobies I have the more vinagrey the tea becomes. I am about to make new tea, and I haven’t tried the flavor of the one fermenting for so long… Have I ruined the skobies by starving them for so long? Should I toss them and start over? Can I recover them?
Thank you so much for your help!
Hi Claudia! You can make SCOBY candy or a SCOBY smoothie 😀
And no, the SCOBYs should be fine (as long as there is no mold present).
I would love to make my own Kombucha (I’ve been making my own plain Greek yogurt for a few years). I watched the video and downloaded the PDF and am left with one question regarding the Scoby. Are you reusing it to make each batch? It just lives in a jar with 2 cups from each batch? This is my only hang up before I start. Thank you!
Michelle
Yes, reusing it for each new batch! And adding 2 cups of starter form each batch to the next cycle.
I Will try it
Thankyiu
Hi. Thanks for the step by step guide. I have a couple of questions. I was told not to use plastic spigot as it would get eaten by the acidity and ole use metal. Is that true? I grew my scoby from 4 pure kombucha gt bottles (worked great!!) just pure kombucha no starter tea and I use that as hotel. So I started two batches a few days apart. One was made with the kombucha shop kit. In F1 no bubbles, new scoby was translucent and original was ok. But in the jar I notice clear jelly like shreds of stuff and was flat no bubbles at all. The second batch I use black tea, cane sugar and my grown scoby with the kombucha in which I grew it as starter. That batch was bubbly in F1. I moved both to F2 at different times. The kombucha shop one was very jelly like and still no bubbles ( should I scrap that batch???) and my batch is fizzing up already I will be ready to drink that soon. And I started batch two from that batch.
You can use fermentation safe plastic, but plastic can house bacteria which may cause mold. Metal would need to be fermentation safe as well so that it doesn’t react with the acidic kombucha.
Don’t need to scrap anything unless it’s moldy! Here’s how to fix fizz issues.
Is it okay to use a 2L jar for the scoby? It’s the only one I have
Yep!
I accidentally doubled the scoby recipe and have it all in a gallon glass jar. There is about a two inch space to the top of the jar. Will this still work to grow a scoby or should I have poured it into two different jars?
It should still work! 😀
thank you so much for this information! i am new to making homemade Kombucha and i totally love it. I made my 3rd batch so far and am so worried as my scoby is near the bottom and its sideways! Its been like this for 2 days now, should i be worried that its not alive anymore? Its quite chilly in my kitchen as its so cold outside. Your help is so appreciated. thanks in advance. Joanne
That’s totally fine! Your SCOBY may sink or move around, it’s still alive! 😀
Hi, just getting started and wondering if the 2nd fermentation is necessary? I am not a big carbonated drink fan,will I get all the same health benefits if I drink my buch uncarbonated? Thx!
Nope it’s not! It’s just for added carbonation and flavor 😀