Making your own kombucha is one of the easiest and most rewarding kitchen projects you can try. Instead of spending money on tiny store-bought bottles, you can brew an entire gallon at home for just a few dollars using only tea, sugar, and a healthy scoby.
While kombucha might seem complicated from the outside, the process is surprisingly simple. Once you make your first batch, you’ll see how forgiving, flexible, and low maintenance homemade kombucha really is. If sourdough or kefir ever felt overwhelming, kombucha will feel refreshingly easy.
Below is a complete step-by-step homemade kombucha recipe, along with essential tools, brewing tips, FAQs, and a nutrition guide to help you get started confidently.
Recipe
Yield: A little less than 1 gallon
Ingredients
• 1 healthy starter scoby
• 1 cup organic cane sugar
• 4 black tea bags
• 1 green tea bag
• 3–4 cups filtered water (for brewing tea)
• Additional filtered water to fill the jar
• Starter liquid (from a previous batch or from your scoby package)
Tools
• 1 wide-mouth gallon glass jar
• Clean tea towel or muslin cloth + rubber band
• Glass jars with tight-sealing lids for bottling
Instructions
1. Brew a strong tea.
Bring 3–4 cups of filtered water to a boil. Add 4 black tea bags and 1 green tea bag. Steep for at least 15–20 minutes. Longer is fine. Let the tea cool completely.
2. Prepare your starter liquid.
If you’re turning over an existing batch, remove the scoby with clean hands and place it on a clean plate. Leave about 2 cups of kombucha in the jar as your starter.
3. Bottle the finished kombucha.
Pour the brewed kombucha into clean bottles. Leave headspace if you plan to add juice for a second fermentation.
4. Optional: Second fermentation for flavor.
Add a splash of 100% juice (cherry, mango, blueberry, ginger, etc.), seal tightly, and leave the bottles at room temperature for a few days before refrigerating.
5. Start the new batch.
To the gallon jar, add your cooled tea and 1 cup of sugar. Stir until fully dissolved.
6. Add filtered water.
Fill the jar to the shoulders with filtered water.
7. Add the scoby.
Gently place the scoby on top. It may float or sink—both are normal.
8. Cover and ferment.
Cover the jar with a clean tea towel and secure it with a rubber band. Do not use a sealed lid.
9. Ferment for 7–14 days.
Place the jar in a warm, undisturbed spot. Taste after day 7. If it still tastes like sweet tea, it needs more time.
10. When tangy, it’s ready.
Once the kombucha is tart, slightly acidic, and no longer sweet, it’s ready to bottle—and the cycle repeats.
Tips for the Best Homemade Kombucha
Use organic sugar and tea.
Higher-quality ingredients make a stronger brew and keep your scoby healthy.
Avoid contact with metal.
Metal can interfere with fermentation. Use glass, plastic, or wood.
Cool the tea completely.
Hot tea can damage or kill the scoby.
Understand your scoby.
Some float, some sink, some grow fast—every scoby behaves differently.
Boost flavor during second ferment.
Airtight bottles and natural fruit juice help develop carbonation and flavor.
FAQs
How long does kombucha take to ferment?
Usually 7–14 days, depending on temperature and scoby strength.
How do I know when my kombucha is ready?
Taste it. If it’s sweet, it needs more time. If it’s tangy and slightly acidic, it’s done.
What if my scoby sinks?
Completely normal. A new layer will usually form at the top anyway.
Is it safe to remove scoby layers?
Yes. Removing extra layers is healthy for the scoby. You can discard or share them.
Why isn’t my kombucha fizzy?
Fizz comes from a second fermentation in airtight bottles. Loose lids = low carbonation.
Do I have to use black tea?
Black tea works best. You can blend in some green tea, but avoid herbal tea for the main brew.
Nutrition Table (Per 8 oz Serving)
| Nutrient | Amount (Approx.) |
|---|---|
| Calories | 25 |
| Carbohydrates | 6 g |
| Sugar | 5–6 g |
| Fat | 0 g |
| Protein | 0 g |
| Sodium | 0 mg |
| Probiotics | Varies by batch |
