Starbucks Doubleshot Espresso & Cream has more caffeine than V8 +Energy on both counts: 120mg per 6.5 oz can against 80mg per 8 oz can, and about 18mg 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.
V8 +Energy vs Starbucks Doubleshot Espresso & Cream: the numbers
| V8 +Energy | Starbucks Doubleshot Espresso & Cream | |
|---|---|---|
| Caffeine per serving | 80mg per 8 oz can | 120mg per 6.5 oz can |
| Caffeine per fl oz | 10.0mg | 18.5mg |
| Servings to reach 400mg (FDA context) | 5.0 | 3.3 |
Sources: V8 +Energy's figure is verified in our V8 +Energy caffeine guide against Campbell's / 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 V8 +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
- V8 +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 V8 +Energy or Starbucks Doubleshot Espresso & Cream have more caffeine? Starbucks Doubleshot Espresso & Cream: 120mg per 6.5 oz can versus 80mg per 8 oz can for V8 +Energy.
Which is stronger per ounce? Starbucks Doubleshot Espresso & Cream, at about 18.5mg per fluid ounce versus 10.0mg for V8 +Energy.
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