Adrenaline Shoc has more caffeine than Starbucks Doubleshot Espresso & Cream on both counts: 300mg per 16 oz can against 120mg per 6.5 oz can, and about 19mg per fluid ounce against 18. 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.
Adrenaline Shoc vs Starbucks Doubleshot Espresso & Cream: the numbers
| Adrenaline Shoc | Starbucks Doubleshot Espresso & Cream | |
|---|---|---|
| Caffeine per serving | 300mg per 16 oz can | 120mg per 6.5 oz can |
| Caffeine per fl oz | 18.8mg | 18.5mg |
| Servings to reach 400mg (FDA context) | 1.3 | 3.3 |
Sources: Adrenaline Shoc's figure is verified in our Adrenaline Shoc caffeine guide against Caffeine Informer (source); Starbucks Doubleshot Espresso & Cream's figure is verified in our Starbucks Doubleshot Espresso & Cream guide against Caffeine Informer / Starbucks nutrition (source).
Which one should you pick?
Pick Starbucks Doubleshot Espresso & Cream when you want the lighter dose or a slower ramp, and Adrenaline Shoc 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
- Adrenaline Shoc: the full caffeine guide
- Starbucks Doubleshot Espresso & Cream: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Adrenaline Shoc or Starbucks Doubleshot Espresso & Cream have more caffeine? Adrenaline Shoc: 300mg per 16 oz can versus 120mg per 6.5 oz can for Starbucks Doubleshot Espresso & Cream.
Which is stronger per ounce? Adrenaline Shoc, at about 18.8mg per fluid ounce versus 18.5mg for Starbucks Doubleshot Espresso & Cream.
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