Death Wish Coffee (brewed) has more caffeine than Rockstar Original on both counts: 300mg per 8 oz brewed against 160mg per 16 oz can, and about 38mg per fluid ounce against 10. 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.
Death Wish Coffee (brewed) vs Rockstar Original: the numbers
| Death Wish Coffee (brewed) | Rockstar Original | |
|---|---|---|
| Caffeine per serving | 300mg per 8 oz brewed | 160mg per 16 oz can |
| Caffeine per fl oz | 37.5mg | 10.0mg |
| Servings to reach 400mg (FDA context) | 1.3 | 2.5 |
Sources: Death Wish Coffee (brewed)'s figure is verified in our Death Wish Coffee (brewed) caffeine guide against Death Wish Coffee published figure (source); Rockstar Original's figure is verified in our Rockstar Original guide against Rockstar product page (source).
The concentration gap is the striking part: Death Wish Coffee (brewed) packs roughly 4 times the caffeine per ounce. Sipping speed matters at that density; a 8 oz brewed finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick Rockstar Original when you want the lighter dose or a slower ramp, and Death Wish Coffee (brewed) 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
- Death Wish Coffee (brewed): the full caffeine guide
- Rockstar Original: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Death Wish Coffee (brewed) or Rockstar Original have more caffeine? Death Wish Coffee (brewed): 300mg per 8 oz brewed versus 160mg per 16 oz can for Rockstar Original.
Which is stronger per ounce? Death Wish Coffee (brewed), at about 37.5mg per fluid ounce versus 10.0mg for Rockstar Original.
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