Learn
Kombucha, explained.
Clear, evergreen guides to home brewing, from your first batch to the fine-tuning. No fluff, no miracle claims, and sources you can check.
All guides
How to make kombucha at home: a complete beginner’s guide
The ratio, the equipment, a day-by-day timeline, and the mistakes that trip up first batches.
What is kombucha? What it is made of, how it is made, and what is in a glass
What kombucha is, what is in a glass (sugar, caffeine, acids, alcohol), where it comes from, and how it compares to similar drinks.
What is a SCOBY? The kombucha culture explained
What the culture is made of, how to grow one from scratch, and how to keep spares between batches.
Does kombucha have alcohol? How much is in it, and how to keep home brew low
Where the alcohol comes from, typical levels in shop-bought and home-brewed kombucha, what pushes it up, and how to keep it low.
Kombucha second fermentation: how to flavor it and make it fizzy
Bottles, flavor amounts, timing, and fixes for flat or over-carbonated kombucha.
Kombucha flavors: ginger and 20 combinations that work
Amounts, the classic ginger, 20 combinations by season, what fizzes and what does not, and what to avoid.
How long to ferment kombucha: timing, temperature and taste
Why 7 to 14 days is only a starting point, how temperature changes everything, and how to taste your way to the right day.
Is kombucha good for you? Benefits, side effects, and who should be careful
What human studies actually show, the side effects that are real, how much is reasonable, and who should avoid raw kombucha.
Sugar, caffeine and calories in kombucha, and how to brew it lower
What remains in a glass after fermentation, why it varies, how to read a label, and how to brew lower-sugar and lower-caffeine kombucha.
Kombucha mold: how to tell mold from yeast and a healthy SCOBY
The one-minute check, what is and is not mold, what to throw away, and how to stop it coming back.
The best tea for kombucha: black, green, white, oolong, and what to avoid
How black, green, white and oolong behave in the jar, which teas harm the culture, and how much to use.
Kombucha equipment: what you need, what to skip, and whether a starter kit is worth it
The essentials and their materials, safe bottles, the extras that help, what to skip, and what a good starter kit contains.
Kombucha troubleshooting: 12 common problems and how to fix them
Symptom by symptom: what it means, how to fix it, and the short list of things that mean the batch has to go.
Continuous brew kombucha: how it works and when it beats batches
How the spigot method works, how to set it up, the draw-and-top-up routine, the trade-offs, and how to keep it healthy.
How long does kombucha last? Storing bottles, batches and cultures
How long bottles keep and how they change, what to do with a batch left in the jar and a spare culture, and when to throw kombucha out.
No guide matches that yet. Try another word, such as SCOBY, fizz or mold.
Ready to put it into practice?
Fermenta keeps count of the days, reminds you when a batch needs you, and remembers what worked last time.
