Red Bull has more caffeine than KOE organic kombucha on both counts: 80mg per 8.4 oz can against 15mg per 12 oz can, and about 10mg per fluid ounce against 1. The serving sizes differ, so the table below shows both ways of counting.
These are different categories of drink, which changes how the caffeine arrives. Energy drinks and sodas list an exact number because caffeine is a measured additive; brewed drinks vary with the beans and the brew, so their figures are compiled averages. The numbers here are the standard published values for each.
KOE organic kombucha vs Red Bull: the numbers
| KOE organic kombucha | Red Bull | |
|---|---|---|
| Caffeine per serving | 15mg per 12 oz can | 80mg per 8.4 oz can |
| Caffeine per fl oz | 1.2mg | 9.5mg |
| Servings to reach 400mg (FDA context) | 26.7 | 5.0 |
Sources: KOE organic kombucha's figure is verified in our KOE organic kombucha caffeine guide against Caffeine Informer (source); Red Bull's figure is verified in our Red Bull guide against Red Bull label / Caffeine Informer (source).
The concentration gap is the striking part: Red Bull packs roughly 8 times the caffeine per ounce. Sipping speed matters at that density; a 8.4 oz can finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick KOE organic kombucha when you want the lighter dose or a slower ramp, and Red Bull 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
- Red Bull: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does KOE organic kombucha or Red Bull have more caffeine? Red Bull: 80mg per 8.4 oz can versus 15mg per 12 oz can for KOE organic kombucha.
Which is stronger per ounce? Red Bull, at about 9.5mg per fluid ounce versus 1.2mg for KOE organic kombucha.
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