GURU Original has more caffeine than Brisk Iced Tea (Lemon): 140mg vs 11mg in the same 12 oz can. That is a 129mg gap, and since the cans match, the per-serving number is the whole story.
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.
GURU Original vs Brisk Iced Tea (Lemon): the numbers
| GURU Original | Brisk Iced Tea (Lemon) | |
|---|---|---|
| Caffeine per serving | 140mg per 12 oz can | 11mg per 12 oz can |
| Caffeine per fl oz | 11.7mg | 0.9mg |
| Servings to reach 400mg (FDA context) | 2.9 | 36.4 |
Sources: GURU Original's figure is verified in our GURU Original caffeine guide against Caffeine Informer (source); Brisk Iced Tea (Lemon)'s figure is verified in our Brisk Iced Tea (Lemon) guide against Caffeine Informer (source).
The concentration gap is the striking part: GURU Original packs roughly 13 times the caffeine per ounce. Sipping speed matters at that density; a 12 oz can finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick Brisk Iced Tea (Lemon) when you want the lighter dose or a slower ramp, and GURU Original 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
- GURU Original: the full caffeine guide
- Brisk Iced Tea (Lemon): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
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Gear from this guide
FAQ
Does GURU Original or Brisk Iced Tea (Lemon) have more caffeine? GURU Original: 140mg per 12 oz can versus 11mg per 12 oz can for Brisk Iced Tea (Lemon).
Which is stronger per ounce? GURU Original, at about 11.7mg per fluid ounce versus 0.9mg for Brisk Iced Tea (Lemon).
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.
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