GURU Original has more caffeine than International Delight iced coffee: 140mg vs 88mg in the same 12 oz can. That is a 52mg 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.
International Delight iced coffee vs GURU Original: the numbers
| International Delight iced coffee | GURU Original | |
|---|---|---|
| Caffeine per serving | 88mg per 12 oz serving | 140mg per 12 oz can |
| Caffeine per fl oz | 7.3mg | 11.7mg |
| Servings to reach 400mg (FDA context) | 4.5 | 2.9 |
Sources: International Delight iced coffee's figure is verified in our International Delight iced coffee caffeine guide against Caffeine Informer (source); GURU Original's figure is verified in our GURU Original guide against Caffeine Informer (source).
Which one should you pick?
Pick International Delight iced coffee 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
- International Delight iced coffee: the full caffeine guide
- GURU Original: the full caffeine guide
- The verified caffeine database
FAQ
Does International Delight iced coffee or GURU Original have more caffeine? GURU Original: 140mg per 12 oz can versus 88mg per 12 oz serving for International Delight iced coffee.
Which is stronger per ounce? GURU Original, at about 11.7mg per fluid ounce versus 7.3mg for International Delight iced coffee.
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.