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the claim

Kombucha contains caffeine from the tea used to brew it.

the verdict
INSUFFICIENT LEANING
Recorded sources
3 sources for · 0 against

Counts group repeated records of the same source within each side. They do not measure evidence strength or source independence.

Is it true that Kombucha contains caffeine from the tea used to brew it?

Unclear. One reference states kombucha is a fermented sweetened black tea drink, and a 2026 fermentation study reports caffeine remained stable in green tea kombucha, while a tea reference notes green tea contains caffeine. Together these partially support that kombucha contains caffeine from its tea base, but no single source states the causal link directly.

Verdict: PARTIAL LEAN · 3 sources for, 0 against · Last checked

The private library was unavailable for some searches in this check. Missing library results are not evidence against the claim.

Evidence for · 3
Kombucha
Get citation
Kombucha. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/Kombucha

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More for · 2
Optimization of Kombucha Fermentation from Green Tea and Pineapple Juice: Chemical, Physicochemical, and Bioactive Profiles for Functional Beverage Development.
2026
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SV, F. G., SS, Q. N., F, M. M. M., C, P., EG, A. F., LMA, S., & KM, C. (2026). Optimization of Kombucha Fermentation from Green Tea and Pineapple Juice: Chemical, Physicochemical, and Bioactive Profiles for Functional Beverage Development.. doi.org. https://doi.org/10.1021/acsomega.6c03893

White tea
Get citation
White tea. (n.d.). en.wikipedia.org. https://en.wikipedia.org/wiki/White_tea

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