KALAMITea – Kombucha Alcohol Levels Affecting Mothers, Infants and Toddlers
Sung Sik Jang
Kombucha is a popular fermented beverage made from sweetened black tea
and culture. During fermentation bacteria and yeast will convert sugars into
a vinegar-based carbonated beverage. However, if fermentation is incomplete
or continues after bottling ethanol may form. Non-alcoholic beverages sold in
BC should have alcohol by volume (ABV) levels at or below 1%. We conducted
a survey of kombucha teas in BC this summer to evaluate if ABV, excess acids
(pH below 2.5) or E. coli were issues in these beverages. We partnered with BCIT
researchers who detected ethanol using validated head space GC-MS methods.
Results demonstrated specific brands of kombucha tea had ABV1%; the highest
ethanol level (3.4%) to date was found in a mango flavored bottled kombucha
tea purchased in a retail store in central Vancouver.
BC CDC Presenters
10/24/2019 6:35:00 PM
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