Starbucks canned Nitro (Black) has more caffeine than Starbucks bottled Frappuccino (Mocha) on both counts: 155mg per 9.6 oz can against 105mg per 13.7 oz bottle, and about 16mg per fluid ounce against 8. The serving sizes differ, so the table below shows both ways of counting.
Starbucks canned Nitro (Black) vs Starbucks bottled Frappuccino (Mocha): the numbers
| Starbucks canned Nitro (Black) | Starbucks bottled Frappuccino (Mocha) | |
|---|---|---|
| Caffeine per serving | 155mg per 9.6 oz can | 105mg per 13.7 oz bottle |
| Caffeine per fl oz | 16.1mg | 7.7mg |
| Servings to reach 400mg (FDA context) | 2.6 | 3.8 |
Sources: Starbucks canned Nitro (Black)'s figure is verified in our Starbucks canned Nitro (Black) caffeine guide against PepsiCo product facts (source); Starbucks bottled Frappuccino (Mocha)'s figure is verified in our Starbucks bottled Frappuccino (Mocha) guide against PepsiCo product facts (source).
Which one should you pick?
Pick Starbucks bottled Frappuccino (Mocha) when you want the lighter dose or a slower ramp, and Starbucks canned Nitro (Black) 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
- Starbucks canned Nitro (Black): the full caffeine guide
- Starbucks bottled Frappuccino (Mocha): the full caffeine guide
- The verified caffeine database
FAQ
Does Starbucks canned Nitro (Black) or Starbucks bottled Frappuccino (Mocha) have more caffeine? Starbucks canned Nitro (Black): 155mg per 9.6 oz can versus 105mg per 13.7 oz bottle for Starbucks bottled Frappuccino (Mocha).
Which is stronger per ounce? Starbucks canned Nitro (Black), at about 16.1mg per fluid ounce versus 7.7mg for Starbucks bottled Frappuccino (Mocha).
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.