Step by Step Guide How to Making Homemade Kombucha
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 as I impart on you the secrets of homemade kombucha!
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 interwebs. No-fuss. No confusion. Because making homemade kombucha is so simple (albeit a bit slow), and I hope after reading this you’ll give it a whirl! Let’s hop right to it.
How To Make Homemade Kombucha With Full Details: Overview
This post will go into detail about each step in the process of making kombucha. For succinct instructions, scroll to the bottom where a recipe card lays out the basics of making homemade kombucha. The general order of things goes something like this (you can jump around this tutorial by clicking the links below):
1. How To Make A Homemade 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 scary and alien-looking and Buzzfeed did a whole article about how ugly this mama is…but it’s the very essence of kombucha! It brings love and flavor and magic!
Making a SCOBY Ingredients:
7 cups (1.6 L) clean water
½ cup (100 g) white sugar
4 bags black tea (or 1 Tbsp loose tea)
1 cup (235 mL) unpasteurized, unflavored store-bought kombucha
A large glass or ceramic container (two jars holding at least ½ gallon (1.9 L) each, or one jug holding at least 1 gallon (3.7 L)). Alternatively, use a glass jug with a built-in spigot to make pouring the kombucha out easier!
Tightly woven cloth (coffee filters, paper towels, napkins, cheesecloth)
Rubberbands
Making a SCOBY Instructions:
Bring water to a boil in a clean pot. Remove from heat and dissolve sugar into it.
Add the tea and allow to steep while the water cools to room temperature (a few hours). Only when water is at room temperature is it ready to work with (test by drawing out some water with a paper straw, using your finger to keep the ‘buch in the straw).
Pour the sweetened tea into your jar(s), then pour store-bought kombucha in (if you’re using two jars, pour ½ of the store-bought kombucha into each), making sure to include any little gunkies that may be at the bottom. These are good!
Cover with a few layers of the tightly woven cloth (keeps out bugs and debris) and secure with a rubber band.
Set somewhere dark, still, and room temperature (70-75 degrees F, 21-24 C), like a cupboard, for 1 to 4 weeks, until a ¼ inch (½ cm) SCOBY has formed.
Keep SCOBY in its original tea until you’re ready to brew your first batch. The SCOBY should live and grow for years if treated with love. The tea you used to make the SCOBY, however, is very vinegary and should be tossed. Don’t use this tea as the starter to your first fermentation!
Things to note when making your SCOBY:
No decaf. The SCOBY doesn’t like decaf tea and will not grow as well if fed it (SCOBY = my spirit animal)
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.
No honey. Honey can contain botulism bacteria that, when grown exponentially as bacteria and yeast tend to do in kombucha, can be dangerous. You can use honey in the second fermentation, once there are a higher number of good bacteria to fight off the bad, but for now, stick to sugar.
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. If it floats sideways or sinks, leave it! It’s just doing it’s SCOBY thang.
It’s all in the proportions. As I mentioned, I made two SCOBYs with this recipe, and you could probably make more. As long as you keep the proportions in check (7 c water: 1 c starter: 4 bags tea: 1/2 c sugar), you’ll be fine. Also, note that this is the same proportion we’ll use in the first fermentation, but on a larger scale to make more ‘buch!
Got leftovers? Never throw your SCOBY away! Share the kombucha love by gifting it to a friend, or make it into a delicious gummy candy!
Homemade Kombucha: The First Fermentation
So you’ve got a newbie SCOBY and you’re ready to get this combo-choo train rollin’. This first fermentation is where you actually make the kombucha.
First Fermentation Ingredients:
14 cups (3.5 quarts, 3.3 L) clean water
1 cup (200 g) white sugar
8 bags black or green tea (or 2 Tbsp loose-leaf)
2 cups (470 mL) unflavored kombucha (either from a previous batch or unpasteurized, unflavored store-bought kombucha
1 or 2 SCOBYs (depending on how many containers you’re using, 1 per container)
A large glass or ceramic container (two jars holding at least ½ gallon (1.9 L) each, or one jug holding at least 1 gallon (3.7 L)). Alternatively, use a glass jug with a built-in spigot to make pouring the kombucha out easier!
Tightly woven cloth (coffee filters, paper towels, napkins, cheesecloth)
Rubberbands
First Fermentation Instructions:
Bring water to a boil in a clean pot. Remove from heat and dissolve sugar into it.
Add the tea and allow to steep while the water cools to room temperature (a few hours). Again, MUST be room temperature. Don’t risk killing your SCOBY in hot water.
With hands AS CLEAN AS A SURGEON’S (really clean), gently remove your SCOBY from the tea and place it on an equally clean plate. You can rinse out the jar if you want (without soap), but it’s not necessary.
Pour the sweetened tea into your jar(s), then pour in unflavored starter kombucha (if you’re using two jars, pour ½ of the starter kombucha into each).
Gently place SCOBY into a jar then cover with a few layers of the tightly woven cloth and secure with a rubber band.
Set the jar(s) somewhere dark, still, and room temperature (70-75 degrees F, 21-24 C) for anywhere from 6 to 10 days. Begin tasting the tea at about 6 days by gently drawing out some of the tea with a paper straw (using your finger to hold the tea in the straw, don’t use your mouth). It should be mildly sweet and slightly vinegary. The warmer the air temperature, the faster the kombucha will ferment. The longer the tea ferments, the more sugar molecules will be eaten up, the less sweet it will be.
Reserve 2 cups from this batch to use as starter kombucha for your next batch (just leave it in the jar with SCOBY(s)). The rest can move into the second and final fermentation.
Things to note about the first fermentation:
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 (2.5 cm) thick, peel off a few layers to create a second SCOBY (you can share the love and gift this to a friend!)
Homemade Kombucha: 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 flavors that will not only make your homemade kombucha taste better than store-bought, but will give those good bacteria the power to kick it into high carbonation gear, bringing everything together into effervescent bliss. Let’s finish this.
Second Fermentation Ingredients:
3. 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
A slice of orange
1 to 2 tsp honey
a piece of peppermint candy
a piece of candied ginger
*to add chia seeds, see below under “things to note”
A few flip top fermentation bottles (bottles meant for fermentation have an airtight seal, which will prevent carbonation from escaping. If you don’t have these, canning jars will do an alright job, though they aren’t truly airtight.)
Second Fermentation Instructions:
1. Strain kombucha and funnel into bottles, leaving about 1 1/2 inches at the top (3.8 cm).
2. Add your chosen sweetener and seal tightly with a lid.
3. Let ferment somewhere dark and room temperature for 3 to 10 days.
4. If desired, strain out fruit before serving. Place in the fridge to slow the carbonation process
Things to note about the second fermentation:
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 is probably done. “Burp” them by opening each to release some pressure, then place them in the refrigerator to slow fermentation.
Carefully open bottles over the sink with a towel in hand.
The more sugar/fruit you add, the faster the kombucha will ferment and become carbonated.
Chia seeds are my favorite addition to kombucha. Rather than adding these to the ‘buch when we add the sweetener, we’ll stir these in at the very end after the kombucha has been carbonated. Use 1 Tbsp of chia seeds per 1 cup of kombucha. Stir in the seeds and allow them to do their absorbing thang for a few hours, stirring every once in a while to keep them from clumping.
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