kombucha (traditionally brewed) vs brewed green tea: which has more caffeine?

brewed green tea has more caffeine than kombucha (traditionally brewed): 28mg vs 24mg in the same 8 oz cup. That is a 4mg gap, and since the cups match, the per-serving number is the whole story.

kombucha (traditionally brewed) vs brewed green tea: the numbers

kombucha (traditionally brewed) brewed green tea
Caffeine per serving 24mg per 8 oz glass 28mg per 8 oz cup
Caffeine per fl oz 3.0mg 3.5mg
Servings to reach 400mg (FDA context) 16.7 14.3

Sources: kombucha (traditionally brewed)'s figure is verified in our kombucha (traditionally brewed) caffeine guide against Caffeine Informer (source); brewed green tea's figure is verified in our brewed green tea guide against USDA FoodData Central (source).

Which one should you pick?

Pick kombucha (traditionally brewed) when you want the lighter dose or a slower ramp, and brewed green tea when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.

For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.

Related reading

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Gear from this guide

FAQ

Does kombucha (traditionally brewed) or brewed green tea have more caffeine? brewed green tea: 28mg per 8 oz cup versus 24mg per 8 oz glass for kombucha (traditionally brewed).

Which is stronger per ounce? brewed green tea, at about 3.5mg per fluid ounce versus 3.0mg for kombucha (traditionally brewed).

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