Dunkin Shot in the Dark vs Starbucks Doubleshot Espresso & Cream: which has more caffeine?

Dunkin Shot in the Dark carries more total caffeine per serving (134mg per 8.1 oz can vs 120mg per 6.5 oz can), but ounce for ounce Starbucks Doubleshot Espresso & Cream is actually the stronger drink at about 18mg per fluid ounce against 17. Which one "has more caffeine" depends on whether you measure the container or the concentration.

Dunkin Shot in the Dark vs Starbucks Doubleshot Espresso & Cream: the numbers

Sources: Dunkin Shot in the Dark's figure is verified in our Dunkin Shot in the Dark 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 Dunkin Shot in the Dark 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
• 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 Dunkin Shot in the Dark or Starbucks Doubleshot Espresso & Cream have more caffeine? Dunkin Shot in the Dark: 134mg per 8.1 oz can versus 120mg per 6.5 oz can for Starbucks Doubleshot Espresso & Cream.

Which is stronger per ounce? Starbucks Doubleshot Espresso & Cream, at about 18.5mg per fluid ounce versus 16.5mg for Dunkin Shot in the Dark.