Private Selection canned espresso (Kroger) has more caffeine than Starbucks bottled Frappuccino (Mocha) on both counts: 145mg per 15 oz can against 105mg per 13.7 oz bottle, and about 10mg per fluid ounce against 8. The serving sizes differ, so the table below shows both ways of counting.
Private Selection canned espresso (Kroger) vs Starbucks bottled Frappuccino (Mocha): the numbers
| Private Selection canned espresso (Kroger) | Starbucks bottled Frappuccino (Mocha) | |
|---|---|---|
| Caffeine per serving | 145mg per 15 oz can | 105mg per 13.7 oz bottle |
| Caffeine per fl oz | 9.7mg | 7.7mg |
| Servings to reach 400mg (FDA context) | 2.8 | 3.8 |
Sources: Private Selection canned espresso (Kroger)'s figure is verified in our Private Selection canned espresso (Kroger) caffeine guide against Caffeine Informer (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 Private Selection canned espresso (Kroger) 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
- Private Selection canned espresso (Kroger): the full caffeine guide
- Starbucks bottled Frappuccino (Mocha): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does Private Selection canned espresso (Kroger) or Starbucks bottled Frappuccino (Mocha) have more caffeine? Private Selection canned espresso (Kroger): 145mg per 15 oz can versus 105mg per 13.7 oz bottle for Starbucks bottled Frappuccino (Mocha).
Which is stronger per ounce? Private Selection canned espresso (Kroger), at about 9.7mg per fluid ounce versus 7.7mg for Starbucks bottled Frappuccino (Mocha).
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