Getting Started with Kombucha Brewing: A Beginner's Guide

Kombucha has been enjoyed for centuries — a tangy, fizzy, probiotic-rich tea that you can easily brew at home. If you've ever thought about making your own, this guide will walk you through everything you need to get started.

What Is Kombucha?

Kombucha is a fermented tea drink made by adding a SCOBY (Symbiotic Culture of Bacteria and Yeast) to sweetened tea. Over the course of 7–14 days, the SCOBY consumes the sugar and produces organic acids, carbon dioxide, and a small amount of alcohol — resulting in a tangy, slightly fizzy beverage.

What You Need

Before you brew your first batch, gather these essentials:

• A SCOBY — you can get one from a fellow brewer, order online, or grow your own from a bottle of raw, unflavored kombucha
• Tea — black tea is the most common choice, but green tea and white tea work well too
• Sugar — plain white granulated sugar is ideal (the SCOBY consumes most of it)
• A large glass jar — at least 1 gallon capacity
• A breathable cover — a cloth or coffee filter secured with a rubber band
• Starter liquid — unpasteurized kombucha or distilled white vinegar

The Basic Process

Step 1: Brew the Sweet Tea

Boil water and steep your tea bags (typically 4–6 bags per gallon). Add about 1 cup of sugar per gallon and stir until dissolved. Let the tea cool to room temperature — hot liquid will harm your SCOBY.

Step 2: Add the SCOBY

Pour the cooled sweet tea into your glass jar, leaving a few inches of headspace. Add your SCOBY and 1–2 cups of starter liquid. Cover with a cloth and secure with a rubber band.

Step 3: First Fermentation (F1)

Place your jar in a warm spot (around 75–85°F / 24–29°C) out of direct sunlight. Let it ferment for 7–14 days. The longer it ferments, the more tart and less sweet it becomes.

Start tasting after 7 days by inserting a straw beneath the SCOBY. When it hits your preferred balance of sweet and tart, it's time for the next step.

Step 4: Second Fermentation (F2)

This is where you add flavor and carbonation. Remove the SCOBY and reserve it with some starter liquid for your next batch. Pour the kombucha into swing-top bottles, add your flavorings (fruit, ginger, herbs), and seal tightly.

Leave the bottles at room temperature for 2–4 days to build carbonation, then refrigerate. Always burp the bottles daily to release excess pressure.

Common Mistakes to Avoid

1. Using metal containers — kombucha is acidic and can react with metal
2. Disturbing the SCOBY — resist the urge to move or touch it during F1
3. Skipping the starter liquid — the acidity protects against mold
4. Fermenting in direct sunlight — find a warm, dark spot instead
5. Not tracking your brews — keep notes on timing, ingredients, and results so you can reproduce your best batches

Track Your Brews with Booch

Speaking of tracking — that last point is one of the most important. Keeping detailed records of each batch helps you understand what works and what doesn't. That's exactly why we built Booch: a simple, dedicated tool for tracking your fermentation stages, ingredients, costs, and results.

Ready to brew smarter? Your first batch is just the beginning.