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Kombucha & fermented drinks: compare ingredients, then choose.

Compare named kombucha and fermented tea flavors by their exact formula.

Research · Kombucha & fermented drinks

What our research found about kombucha & fermented drinks

Kombucha is fermented tea, and its label differences are sugar, fruit juice, caffeine, live cultures and alcohol. Because fermentation produces trace alcohol, the federal Alcohol and Tobacco Tax and Trade Bureau regulates kombucha that reaches 0.5% alcohol by volume at any point; products at or above that level must be labeled as alcohol beverages. Raw, refrigerated kombucha and shelf-stable versions differ in culture counts and sweetness.

Added fruit juices and flavors raise sugar, while “zero sugar” kombuchas use stevia or monk fruit. Compare sugar per serving, since a bottle often holds two servings, and check whether the brand states its alcohol content. People who are pregnant, immunocompromised or avoiding alcohol should check labels carefully and ask a clinician about live-culture drinks.

Products
403 brands
Full labels recorded
1640% of the shelf
Maker says organic
0maker’s claim
List an added sweetener
6of 16 labels
List a seed oil
0of 16 labels
Typical label length
5ingredients (median)

Counts use complete, current ingredient labels only. Records without a published label stay unknown and are never counted as clean.

What to compare

  • Sugar per bottle. Bottles often hold more than one serving; multiply the panel numbers.
  • Alcohol statement. Federal rules apply at 0.5% alcohol by volume or more.
  • Live cultures. Raw products contain live cultures; shelf-stable ones may be pasteurized.
  • Caffeine. Made with tea, so most contain a small amount.

References

  1. Kombucha: when federal alcohol rules apply Alcohol and Tobacco Tax and Trade Bureau
  2. Added sugars on the Nutrition Facts label U.S. Food and Drug Administration
  3. Spilling the beans: how much caffeine is too much? U.S. Food and Drug Administration
  4. Tea Harvard T.H. Chan School of Public Health

Compare the recorded labels

Find the ingredients that matter to you.

40 of 40 products

“No …” columns: None found on the label · Listed on the label · Unknown. Claims: verified · not established. Default: most check marks first; not a health score.

Compare product claims and recorded ingredients. Click a column heading to sort.
Buy
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
71 / 1009 of 9 groups clear · no organic claimSearch on Amazon ↗Product details →4
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0
Not scoredSearch on Amazon ↗Product details →0

Unknown and stale evidence never passes “Only show matches.” The clean score is strict and needs no setup: nine additive groups on the current label plus verified organic and sourcing claims; without them a product cannot reach 100. It is not a nutrition, allergy, or safety rating.

“Buy on Amazon” opens a reviewed product listing; “Search on Amazon” opens an Amazon search for the product, so pick the exact match yourself. Confirm the package, seller, availability, and current price before checkout. Buying links do not influence ingredient results.

01 · A closer look

Your preferences, explained.

The clean score is strict and needs no setup: nine additive groups not found in a current ingredient statement, plus a verified organic claim (and a grass-fed or pasture-raised claim for animal foods), are needed for 100; a possible match earns half and a missing claim earns nothing. Missing or expired evidence stays unknown. It does not assess nutrition, allergies, contaminants, or safety.