What is a SCOBY and how kombucha fermentation works

The SCOBY is the heart of every kombucha. Here is what the “tea fungus” is and why it appears in a bottle of unpasteurized kombucha.

What is a SCOBY?

SCOBY (from Symbiotic Culture of Bacteria and Yeast) is a symbiotic culture of bacteria and yeast – colloquially the “tea fungus”. It is what turns sweetened tea into kombucha.

How does fermentation work?

The SCOBY goes into cooled, sweetened tea and starts fermentation. The micro-organisms turn sugars into organic acids, small amounts of alcohol and carbon dioxide. The result is a lightly tart, naturally sparkling drink. A second fermentation – with fruit or herbs added – brings flavour and bubbles.

Why does a SCOBY appear in our bottle?

Because Nasza Kombucha is unpasteurized, fermentation continues in the bottle too – so a new, small SCOBY naturally forms inside. It is proof the drink is alive. In pasteurized products the live cultures would not survive.

Frequently asked questions

Can I drink the SCOBY from the bottle?

Yes, the SCOBY is edible and can be safely consumed.

Is a SCOBY in the bottle a sign of spoilage?

No – it is a natural effect of unpasteurized kombucha fermentation and confirms the drink is alive.

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