Death Wish Coffee (brewed) has more caffeine than Guayaki Yerba Mate (can) on both counts: 300mg per 8 oz brewed against 150mg per 15.5 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 Guayaki Yerba Mate (can): the numbers
| Death Wish Coffee (brewed) | Guayaki Yerba Mate (can) | |
|---|---|---|
| Caffeine per serving | 300mg per 8 oz brewed | 150mg per 15.5 oz can |
| Caffeine per fl oz | 37.5mg | 9.7mg |
| Servings to reach 400mg (FDA context) | 1.3 | 2.7 |
Sources: Death Wish Coffee (brewed)'s figure is verified in our Death Wish Coffee (brewed) caffeine guide against Death Wish Coffee published figure (source); Guayaki Yerba Mate (can)'s figure is verified in our Guayaki Yerba Mate (can) guide against Guayaki 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 Guayaki Yerba Mate (can) 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
- Guayaki Yerba Mate (can): 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 Guayaki Yerba Mate (can) have more caffeine? Death Wish Coffee (brewed): 300mg per 8 oz brewed versus 150mg per 15.5 oz can for Guayaki Yerba Mate (can).
Which is stronger per ounce? Death Wish Coffee (brewed), at about 37.5mg per fluid ounce versus 9.7mg for Guayaki Yerba Mate (can).
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