Starbucks cold brew (grande) carries more total caffeine per serving (205mg per 16 oz grande vs 180mg per 7 oz can), but ounce for ounce RISE Nitro Cold Brew (Original Black) is actually the stronger drink at about 26mg per fluid ounce against 13. 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 cold brew (grande) vs RISE Nitro Cold Brew (Original Black): the numbers
| Starbucks cold brew (grande) | RISE Nitro Cold Brew (Original Black) | |
|---|---|---|
| Caffeine per serving | 205mg per 16 oz grande | 180mg per 7 oz can |
| Caffeine per fl oz | 12.8mg | 25.7mg |
| Servings to reach 400mg (FDA context) | 2.0 | 2.2 |
Sources: Starbucks cold brew (grande)'s figure is verified in our Starbucks cold brew (grande) caffeine guide against Starbucks menu data (source); RISE Nitro Cold Brew (Original Black)'s figure is verified in our RISE Nitro Cold Brew (Original Black) guide against RISE product page (source).
Which one should you pick?
Pick RISE Nitro Cold Brew (Original Black) when you want the lighter dose or a slower ramp, and Starbucks cold brew (grande) 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 cold brew (grande): the full caffeine guide
- RISE Nitro Cold Brew (Original Black): the full caffeine guide
- The verified caffeine database
FAQ
Does Starbucks cold brew (grande) or RISE Nitro Cold Brew (Original Black) have more caffeine? Starbucks cold brew (grande): 205mg per 16 oz grande versus 180mg per 7 oz can for RISE Nitro Cold Brew (Original Black).
Which is stronger per ounce? RISE Nitro Cold Brew (Original Black), at about 25.7mg per fluid ounce versus 12.8mg for Starbucks cold brew (grande).
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.