Fermentation Basics: Kombucha 101
Kombucha has gone from fringe health drink to supermarket staple. But most people still don’t know what it actually is — or why their grandmother’s generation drank something similar without the fancy branding.
Here’s the simple truth: kombucha is fermented tea. That’s it. But that fermentation process creates something remarkable — a living drink full of probiotics, organic acids, and a gentle fizz that feels like a celebration in your mouth.
📌 The Short Version: Tea + sugar + SCOBY + time = kombucha. The sugar feeds the fermentation, but most of it gets eaten by the good bacteria. What’s left is tart, fizzy, and alive.
What Is Kombucha, Really?
Kombucha is a fermented tea made by adding a SCOBY (Symbiotic Culture Of Bacteria and Yeast) to sweetened tea. The SCOBY feeds on the sugar and tea, producing:
- Probiotics — live good bacteria for gut health
- Organic acids — acetic, gluconic, and lactic acids (the tangy taste)
- B vitamins — B1, B2, B6, B12
- Antioxidants — from the tea base
- Gentle carbonation — natural fizz
⚠️ Heads up: Homemade kombucha contains trace amounts of alcohol (usually less than 0.5%). Store-bought is typically non-alcoholic. If you’re avoiding alcohol entirely, check labels or stick to commercial brands.
What Is a SCOBY? (And Why Does It Look Like a Pancake?)
A SCOBY is a rubbery, pancake-shaped colony of bacteria and yeast. It’s alive. It breathes. And it’s the heart of kombucha making.
New SCOBYs grow with every batch — a baby pancake forms on top. Most home brewers share them like sourdough starters. It’s weird. It’s wonderful. It’s fermentation.
Simple Steps to Brew Your Own Kombucha
You don’t need fancy equipment. Just patience and clean hands.
Boil 1 litre of water. Steep 4-5 black or green tea bags for 10 minutes. Remove bags. Stir in ½ cup of white sugar until dissolved. (Yes, sugar. The SCOBY eats it, you won’t.)
Let the sweet tea cool to room temperature (25-30°C). Hot tea will kill your SCOBY.
Pour cooled tea into a clean glass jar. Add your SCOBY and ½ cup of starter liquid (either from a previous batch or store-bought raw kombucha). Cover with a cloth and rubber band.
Place the jar in a warm, dark spot (20-30°C). Leave it alone for 7-10 days. Taste it after day 7 — it should be less sweet, more tangy.
Remove the SCOBY (save it for next batch). Pour the liquid into flip-top bottles. Add fruit, ginger, or juice for flavour. Leave 2-3 days at room temperature to carbonate. Then refrigerate.
Flavour Ideas to Try
- Ginger + Lemon — zesty, bright, classic
- Berry + Mint — sweet,