The Complete Guide to Kombucha
Kombucha is a fermented tea beverage that has been enjoyed for thousands of years. Made with tea, sugar, and a symbiotic culture of bacteria and yeast (SCOBY), kombucha is tangy, slightly sweet, and naturally effervescent.
New to Kombucha?
Start with our beginner-friendly recipe below. You'll be brewing delicious kombucha in no time!
What You'll Need
Before you start brewing, gather these essentials:
Equipment
- 1-gallon glass jar (wide mouth preferred)
- Breathable cloth cover (cheesecloth, coffee filter, or thin towel)
- Rubber band
- Glass bottles for second fermentation (optional)
Ingredients
- 1 SCOBY with 1 cup starter tea
- 14 cups water
- 1 cup white sugar
- 4-6 tea bags (black tea recommended for beginners)
Basic Kombucha Recipe
Step 1: Make Sweet Tea
- Boil 4 cups of water
- Remove from heat and add sugar, stirring until dissolved
- Add tea bags and steep for 10-15 minutes
- Remove tea bags and add remaining 10 cups of cool water
- Let cool to room temperature (70-85°F / 21-29°C)
Temperature Check
Never add your SCOBY to hot tea! Heat will kill the beneficial cultures. Always cool to room temperature first.
Step 2: Add SCOBY and Starter
- Pour cooled sweet tea into your glass jar
- Add the starter tea (mature kombucha from a previous batch)
- Gently place the SCOBY on top - it may sink or float, both are fine
Step 3: Ferment
- Cover with cloth and secure with rubber band
- Place in a warm spot (70-85°F) away from direct sunlight
- Let ferment for 7-14 days
Step 4: Taste Test
Start tasting around day 7:
- Too sweet? Let it ferment longer
- Too sour? It's ready (or went too long - becomes kombucha vinegar)
- Just right? Time to bottle!
Second Fermentation (Optional)
Want fizzy kombucha? The second fermentation adds carbonation and flavor.
- Remove SCOBY and 1-2 cups of kombucha for your next batch
- Add flavorings to bottles (fruit, juice, herbs)
- Fill bottles with kombucha, leaving 1-2 inches headspace
- Seal tightly and leave at room temperature for 2-4 days
- Refrigerate to stop fermentation
Carbonation Safety
Second ferment builds pressure! Burp bottles daily and use pressure-safe containers. Over-carbonated bottles can explode.
Troubleshooting
Common Issues
Kombucha not carbonating? Check out our carbonation troubleshooting guide.
See something fuzzy on top? Learn to identify mold vs SCOBY.
Kombucha too sour? You can use it as kombucha vinegar or start a new batch sooner.
Tools & Calculators
Use our Kombucha Sugar Calculator to get perfect ratios for any batch size.
Frequently Asked Questions
How long does first fermentation take? Typically 7-14 days at room temperature. Warmer = faster, cooler = slower.
Can I use herbal tea? Only partially. Your SCOBY needs real tea (Camellia sinensis) for nutrients. You can blend herbal with real tea.
How much caffeine is in kombucha? About 1/3 of the original tea's caffeine remains after fermentation.
Is kombucha safe to drink? For most healthy adults, yes. However, pregnant women, those with compromised immune systems, or those with certain health conditions should consult their doctor first.
Disclaimer
This content is for educational purposes only and is not medical advice. Fermented foods affect individuals differently. Consult with a healthcare provider before making significant dietary changes, especially if you have health conditions. Practice proper food safety when fermenting at home.
Next Steps
Ready to level up your kombucha brewing?
- Learn about continuous brew kombucha
- Explore 50+ flavoring ideas
- Understand SCOBY care and maintenance