Here’s a friendly, step‑by‑step guide on how to make kombucha at home, plus some flavor ideas and safety tips.

How to Make Kombucha

Kombucha is a tangy, lightly fizzy fermented tea made with tea, sugar, and a SCOBY (a culture of bacteria and yeast).

Quick Scoop

  • You brew sweet tea.
  • You add a SCOBY and starter tea.
  • It ferments for about 7–10 days.
  • Optionally, you bottle it with flavorings for fizz (second fermentation).

What You Need

Equipment

  • 1 large glass jar (about 3–4 liters / 1 gallon).
  • Tightly woven cloth or paper towel + rubber band (for covering the jar).
  • Non‑metal spoon.
  • Small funnel and bottles with caps for bottling (swing‑top bottles work well).

Ingredients (for about 3 liters / 3 quarts)

  • Water (preferably de‑chlorinated).
  • 8 tea bags black or green tea (or about 2 tbsp loose leaf).
  • 1 cup white sugar (about 200 g).
  • 1 SCOBY.
  • 2 cups unflavored, unpasteurized kombucha as “starter tea” (from a previous batch or store‑bought).

Step‑by‑Step: First Fermentation

This is where the sweet tea turns into kombucha.

  1. Brew the sweet tea
    • Boil part of your water (around 2–4 cups).
 * Add the tea and steep 5–15 minutes, depending on how strong you like it.

 * Remove tea bags/leaves (don’t squeeze them; it can make the tea bitter).

 * Stir in 1 cup sugar until fully dissolved.
  1. Cool and dilute
    • Add the rest of the cool water to reach your final volume (about 3–3.5 liters).
 * Make sure the tea is at room temperature; hot tea can damage the SCOBY (anything above roughly 35°C / 95°F is risky).
  1. Add SCOBY and starter tea
    • Pour the cooled sweet tea into your clean glass jar.
    • Add 2 cups of starter kombucha.
 * Gently place the SCOBY into the jar (it may float, sink, or sit sideways; all are fine).
  1. Cover and ferment
    • Cover the jar with cloth or a paper towel and secure with a rubber band to keep out dust and insects.
 * Leave at room temperature, out of direct sunlight, for about 6–10 days.

 * A new SCOBY layer will usually form on top; that’s normal.
  1. Taste test
    • Start tasting around day 6–7 by carefully sliding in a straw and sipping.
    • When it tastes slightly sour, lightly sweet, and pleasant to you, it’s ready for drinking or bottling.

Optional: Second Fermentation (Fizz + Flavor)

This step gives you carbonation and fun flavors.

  1. Prepare bottles and flavorings
    • Use clean, pressure‑safe bottles with caps.
    • Popular flavorings include:
      • Ginger slices
      • Berries or fruit pieces
      • Citrus juice
      • Herbs (mint, basil, lavender)
    • A small amount of fruit or 1–2 tsp sugar/honey per bottle is usually enough.
  1. Bottle the kombucha
    • Remove the SCOBY and 1–2 cups of kombucha to use as starter for your next batch; set aside in a clean jar.
 * Pour the remaining kombucha into bottles using a funnel, leaving a bit of headspace at the top.
 * Add your chosen flavorings into each bottle.
  1. Ferment again
    • Seal the bottles and leave them at room temperature for 2–5 days.
 * “Burp” (open) the bottles once a day to release pressure, then close again.
 * When it’s fizzy enough, move bottles to the fridge to slow fermentation.

Safety and Practical Tips

  • Use clean equipment, but avoid harsh antibacterial soap residues that could harm the culture.
  • If you see fuzzy mold (often blue, green, or black, clearly dry and on the surface), discard the batch and SCOBY and start over.
  • Slight strings, brown yeast strands, and a new jelly‑like layer on top are normal.
  • Start with small servings if you’re new to kombucha, and avoid brewing in ceramic or metal containers that are not food‑safe and acid‑safe.

Simple Flavor Ideas

  • Ginger‑Lemon: thin ginger slices + a squeeze of lemon in each bottle.
  • Berry Blast: a few frozen raspberries or blueberries.
  • Tropical: pineapple chunks or mango pieces.
  • Herbal: mint sprigs or a little lavender.

Mini FAQ

  • How long does it take?
    Making the SCOBY (if you need one) can take 1–4 weeks, then the first fermentation about 6–10 days, and the second fermentation 3–5 days.
  • Do I need special water?
    De‑chlorinated water is better; chlorine can stress the microbes. Boiling and cooling, letting tap water sit overnight, or using filtered water can help.
  • Can I reuse the SCOBY?
    Yes, you can use the SCOBY again and again and even peel off layers to share with friends once it gets thick.

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TL;DR: Brew sweet tea with sugar, cool it, add SCOBY and starter kombucha, ferment 6–10 days, then optionally bottle with fruit or spices for a fizzy second fermentation.

Information gathered from public forums or data available on the internet and portrayed here.