KOE organic kombucha vs brewed green tea: which has more caffeine?

brewed green tea has more caffeine than KOE organic kombucha on both counts: 28mg per 8 oz cup against 15mg per 12 oz can, and about 4mg per fluid ounce against 1. The serving sizes differ, so the table below shows both ways of counting.

KOE organic kombucha vs brewed green tea: the numbers

Sources: KOE organic kombucha's figure is verified in our KOE organic kombucha 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 KOE organic kombucha 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

• KOE organic kombucha: the full caffeine guide
• brewed green tea: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does KOE organic kombucha or brewed green tea have more caffeine? brewed green tea: 28mg per 8 oz cup versus 15mg per 12 oz can for KOE organic kombucha.

Which is stronger per ounce? brewed green tea, at about 3.5mg per fluid ounce versus 1.2mg for KOE organic kombucha.