High Brew Double Espresso has more caffeine than Dunkin Shot in the Dark on both counts: 140mg per 8 oz can against 134mg per 8.1 oz can, and about 18mg per fluid ounce against 17. The serving sizes differ, so the table below shows both ways of counting.
Dunkin Shot in the Dark vs High Brew Double Espresso: the numbers
| Dunkin Shot in the Dark | High Brew Double Espresso | |
|---|---|---|
| Caffeine per serving | 134mg per 8.1 oz can | 140mg per 8 oz can |
| Caffeine per fl oz | 16.5mg | 17.5mg |
| Servings to reach 400mg (FDA context) | 3.0 | 2.9 |
Sources: Dunkin Shot in the Dark's figure is verified in our Dunkin Shot in the Dark caffeine guide against Caffeine Informer (source); High Brew Double Espresso's figure is verified in our High Brew Double Espresso guide against Caffeine Informer (source).
Which one should you pick?
Pick Dunkin Shot in the Dark when you want the lighter dose or a slower ramp, and High Brew Double Espresso 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
- Dunkin Shot in the Dark: the full caffeine guide
- High Brew Double Espresso: 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 Dunkin Shot in the Dark or High Brew Double Espresso have more caffeine? High Brew Double Espresso: 140mg per 8 oz can versus 134mg per 8.1 oz can for Dunkin Shot in the Dark.
Which is stronger per ounce? High Brew Double Espresso, at about 17.5mg per fluid ounce versus 16.5mg for Dunkin Shot in the Dark.
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