Barista Life Blog · 1 min read

Starbucks bottled Frappuccino (Mocha) vs Reign Storm: which has more caffeine?

Reign Storm has more caffeine than Starbucks bottled Frappuccino (Mocha) on both counts: 200mg per 12 oz can against 105mg per 13.7 oz bottle, and about 17mg per fluid ounce against 8. 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.

Starbucks bottled Frappuccino (Mocha) vs Reign Storm: the numbers

Starbucks bottled Frappuccino (Mocha) Reign Storm
Caffeine per serving 105mg per 13.7 oz bottle 200mg per 12 oz can
Caffeine per fl oz 7.7mg 16.7mg
Servings to reach 400mg (FDA context) 3.8 2.0

Sources: Starbucks bottled Frappuccino (Mocha)'s figure is verified in our Starbucks bottled Frappuccino (Mocha) caffeine guide against PepsiCo product facts (source); Reign Storm's figure is verified in our Reign Storm guide against Caffeine Informer (source).

Which one should you pick?

Pick Starbucks bottled Frappuccino (Mocha) when you want the lighter dose or a slower ramp, and Reign Storm 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

FAQ

Does Starbucks bottled Frappuccino (Mocha) or Reign Storm have more caffeine? Reign Storm: 200mg per 12 oz can versus 105mg per 13.7 oz bottle for Starbucks bottled Frappuccino (Mocha).

Which is stronger per ounce? Reign Storm, at about 16.7mg per fluid ounce versus 7.7mg for Starbucks bottled Frappuccino (Mocha).

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