Ryse Fuel carries more total caffeine per serving (200mg per 16 oz can vs 180mg per 12 oz can), but ounce for ounce Bloom Energy is actually the stronger drink at about 15mg per fluid ounce against 12. Which one "has more caffeine" depends on whether you measure the container or the concentration.
Bloom Energy vs Ryse Fuel: the numbers
| Bloom Energy | Ryse Fuel | |
|---|---|---|
| Caffeine per serving | 180mg per 12 oz can | 200mg per 16 oz can |
| Caffeine per fl oz | 15.0mg | 12.5mg |
| Servings to reach 400mg (FDA context) | 2.2 | 2.0 |
Sources: Bloom Energy's figure is verified in our Bloom Energy caffeine guide against Caffeine Informer (source); Ryse Fuel's figure is verified in our Ryse Fuel guide against Caffeine Informer (source).
Which one should you pick?
Pick Bloom Energy when you want the lighter dose or a slower ramp, and Ryse Fuel 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
- Bloom Energy: the full caffeine guide
- Ryse Fuel: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Bloom Energy or Ryse Fuel have more caffeine? Ryse Fuel: 200mg per 16 oz can versus 180mg per 12 oz can for Bloom Energy.
Which is stronger per ounce? Bloom Energy, at about 15.0mg per fluid ounce versus 12.5mg for Ryse Fuel.
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.