Starbucks Caramel Frappuccino carries more total caffeine per serving (90mg per 16 oz grande vs 60mg per 8 oz cup (1 tsp, ~2g)), but ounce for ounce matcha is actually the stronger drink at about 8mg 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 matcha: the numbers
| Starbucks Caramel Frappuccino | matcha | |
|---|---|---|
| Caffeine per serving | 90mg per 16 oz grande | 60mg per 8 oz cup (1 tsp, ~2g) |
| Caffeine per fl oz | 5.6mg | 7.5mg |
| Servings to reach 400mg (FDA context) | 4.4 | 6.7 |
Sources: Starbucks Caramel Frappuccino's figure is verified in our Starbucks Caramel Frappuccino caffeine guide against Starbucks nutrition listing (source); matcha's figure is verified in our matcha guide against USDA FoodData Central (per-gram) / compiled (source).
Which one should you pick?
Pick matcha 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
- matcha: 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 matcha have more caffeine? Starbucks Caramel Frappuccino: 90mg per 16 oz grande versus 60mg per 8 oz cup (1 tsp, ~2g) for matcha.
Which is stronger per ounce? matcha, at about 7.5mg per fluid ounce versus 5.6mg for Starbucks Caramel Frappuccino.
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