UPTIME Energy has more caffeine than Dunkin Refresher (medium) on both counts: 142mg per 12 oz can against 99mg per 24 oz medium, and about 12mg per fluid ounce against 4. The serving sizes differ, so the table below shows both ways of counting.
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.
Dunkin Refresher (medium) vs UPTIME Energy: the numbers
| Dunkin Refresher (medium) | UPTIME Energy | |
|---|---|---|
| Caffeine per serving | 99mg per 24 oz medium | 142mg per 12 oz can |
| Caffeine per fl oz | 4.1mg | 11.8mg |
| Servings to reach 400mg (FDA context) | 4.0 | 2.8 |
Sources: Dunkin Refresher (medium)'s figure is verified in our Dunkin Refresher (medium) caffeine guide against Tasting Table / Dunkin figures (source); UPTIME Energy's figure is verified in our UPTIME Energy guide against Caffeine Informer (source).
Which one should you pick?
Pick Dunkin Refresher (medium) when you want the lighter dose or a slower ramp, and UPTIME Energy 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
- Dunkin Refresher (medium): the full caffeine guide
- UPTIME Energy: the full caffeine guide
- The verified caffeine database
FAQ
Does Dunkin Refresher (medium) or UPTIME Energy have more caffeine? UPTIME Energy: 142mg per 12 oz can versus 99mg per 24 oz medium for Dunkin Refresher (medium).
Which is stronger per ounce? UPTIME Energy, at about 11.8mg per fluid ounce versus 4.1mg for Dunkin Refresher (medium).
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.