Healthy Fermentation
Real
Store-bought kombucha can be pasteurized, loaded with sugar, and made in a factory. The Fermenstation lets you brew the real thing at home. Live cultures, your ingredients, full control.
Healthy Fermentation
Real
Store-bought kombucha can be pasteurized, loaded with sugar, and made in a factory. The Fermenstation lets you brew the real thing at home. Live cultures, your ingredients, full control.
Read the label on your kombucha. Then read it again.
Some store-bought kombuchas are pasteurized, which kills the live cultures you're paying for. What's left is essentially a sweet, fizzy drink with a health halo. You deserve better.
** ? = Varies by brand. Truly raw commercial kombucha may be less common.
Home sweet home
Real Fermentation.
Dual-stage fermentation using a low heating, temperature-controlled system.
Stay connected by using the mobile app to control the device, like setting timers.
All glass containers. Stainless steel spigot. Platinum silicone gaskets.
Booch.
The hardest part of home brewing is the uncertainty.
The Fermenstation removes it.
Brew your tea, add sugar, cool it down, and pour it in. That's it. Three ingredients you recognize.
With auto-temperature control and timer alerts, you don't have to check it obsessively.
Flavor with your favorites. Then enjoy real kombucha, live cultures intact. All for about 0.40c a bottle.
First Fermentation
Turn tea, sugar, and SCOBY into plain kombucha (unflavored / non-carbonated). Ferments in about 7-10 days.
Second Fermentation
Here we add natural sugars to flavor and carbonate. Use fruit, juice, spices, extracts, or other natural sugars and flavors. Ferments in about 3-5 days.
A better way to brew your booch.
KOMBU is the first modern kombucha brewer. It brings kombucha into the 21st century with an efficient, compact, and connected device.
KOMBU makes it easy to brew great kombucha at home - for a fraction of the cost of store-bought.
App: Available on iOS and Android.
Dimensions (L × W × H):114 x 7.36 x 10.5in | 355 x 187 x 267mm
Weight 15lbs
1-Year Warranty Included
30 Day Return Policy
Once you receive your KOMBU device, you will be fully covered under our warranty terms if there is any issue related to damage or manufacturer defects. Learn more
The best way to support the gut microbiome is to consume 1-4 servings of low-sugar fermented food per day.
Huberman Podcast
None at all. The F1 was designed for people who've never fermented anything. The app walks you through your first batch step by step, and the temperature control handles the most common failure point automatically.
Start by sourcing your starter liquid (SCOBY) - a yeasty and friendly bacteria thriving liquid kombucha. You can use a bottle of raw, unpasteurized plain kombucha from the store, or get a starter from a friend, neighbor, or online.
Temperature consistency is everything in fermentation. Kitchen counters fluctuate — too cold and it stalls, too warm and off-flavors develop. The F1 warms your brew at the ideal range, every batch, regardless of your kitchen. Alongside high-quality materials, our modern convenience features improve the experience.
The vessels and lids are designed for easy disassembly and cleaning. Bottles can be cleaned after every use, and the jar can be cleaned every 6 months to a year. Because the jar uses a continuous brewing method, it needs less periodic cleaning. The liquid is acidic, so it wards off any harmful bacteria!