Reign Storm carries more total caffeine per serving (200mg per 12 oz can 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 17. 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.
RISE Nitro Cold Brew (Original Black) vs Reign Storm: the numbers
| RISE Nitro Cold Brew (Original Black) | Reign Storm | |
|---|---|---|
| Caffeine per serving | 180mg per 7 oz can | 200mg per 12 oz can |
| Caffeine per fl oz | 25.7mg | 16.7mg |
| Servings to reach 400mg (FDA context) | 2.2 | 2.0 |
Sources: RISE Nitro Cold Brew (Original Black)'s figure is verified in our RISE Nitro Cold Brew (Original Black) caffeine guide against RISE product page (source); Reign Storm's figure is verified in our Reign Storm guide against Caffeine Informer (source).
Which one should you pick?
Pick RISE Nitro Cold Brew (Original Black) when you want the lighter dose or a slower ramp, and Reign Storm 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
- RISE Nitro Cold Brew (Original Black): the full caffeine guide
- Reign Storm: the full caffeine guide
- The verified caffeine database
FAQ
Does RISE Nitro Cold Brew (Original Black) or Reign Storm have more caffeine? Reign Storm: 200mg per 12 oz can 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 16.7mg for Reign Storm.
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.