Starbucks Caramel Frappuccino carries more total caffeine per serving (90mg per 16 oz grande vs 85mg per 8 oz cup), but ounce for ounce yerba mate is actually the stronger drink at about 11mg per fluid ounce against 6. Which one "has more caffeine" depends on whether you measure the container or the concentration.
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 Caramel Frappuccino vs yerba mate: the numbers
| Starbucks Caramel Frappuccino | yerba mate | |
|---|---|---|
| Caffeine per serving | 90mg per 16 oz grande | 85mg per 8 oz cup |
| Caffeine per fl oz | 5.6mg | 10.6mg |
| Servings to reach 400mg (FDA context) | 4.4 | 4.7 |
Sources: Starbucks Caramel Frappuccino's figure is verified in our Starbucks Caramel Frappuccino caffeine guide against Starbucks nutrition listing (source); yerba mate's figure is verified in our yerba mate guide against Caffeine Informer / compiled (source).
Which one should you pick?
Pick yerba mate when you want the lighter dose or a slower ramp, and Starbucks Caramel Frappuccino 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 Caramel Frappuccino: the full caffeine guide
- yerba mate: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Starbucks Caramel Frappuccino or yerba mate have more caffeine? Starbucks Caramel Frappuccino: 90mg per 16 oz grande versus 85mg per 8 oz cup for yerba mate.
Which is stronger per ounce? yerba mate, at about 10.6mg per fluid ounce versus 5.6mg for Starbucks Caramel Frappuccino.
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