Starbucks Doubleshot Espresso & Cream has more caffeine than Aspire Energy on both counts: 120mg per 6.5 oz can against 80mg per 12 oz can, and about 18mg per fluid ounce against 7. 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.
Aspire Energy vs Starbucks Doubleshot Espresso & Cream: the numbers
| Aspire Energy | Starbucks Doubleshot Espresso & Cream | |
|---|---|---|
| Caffeine per serving | 80mg per 12 oz can | 120mg per 6.5 oz can |
| Caffeine per fl oz | 6.7mg | 18.5mg |
| Servings to reach 400mg (FDA context) | 5.0 | 3.3 |
Sources: Aspire Energy's figure is verified in our Aspire Energy caffeine guide against Aspire / 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 Aspire Energy when you want the lighter dose or a slower ramp, and Starbucks Doubleshot Espresso & Cream 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
- Aspire Energy: 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 Aspire Energy or Starbucks Doubleshot Espresso & Cream have more caffeine? Starbucks Doubleshot Espresso & Cream: 120mg per 6.5 oz can versus 80mg per 12 oz can for Aspire Energy.
Which is stronger per ounce? Starbucks Doubleshot Espresso & Cream, at about 18.5mg per fluid ounce versus 6.7mg for Aspire Energy.
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