Dunkin hot coffee (medium) has more caffeine than Starbucks cold brew (grande) on both counts: 210mg per 14 oz medium against 205mg per 16 oz grande, and about 15mg per fluid ounce against 13. The serving sizes differ, so the table below shows both ways of counting.
Starbucks cold brew (grande) vs Dunkin hot coffee (medium): the numbers
| Starbucks cold brew (grande) | Dunkin hot coffee (medium) | |
|---|---|---|
| Caffeine per serving | 205mg per 16 oz grande | 210mg per 14 oz medium |
| Caffeine per fl oz | 12.8mg | 15.0mg |
| Servings to reach 400mg (FDA context) | 2.0 | 1.9 |
Sources: Starbucks cold brew (grande)'s figure is verified in our Starbucks cold brew (grande) caffeine guide against Starbucks menu data (source); Dunkin hot coffee (medium)'s figure is verified in our Dunkin hot coffee (medium) guide against Tasting Table / Dunkin figures (source).
Which one should you pick?
Pick Starbucks cold brew (grande) when you want the lighter dose or a slower ramp, and Dunkin hot coffee (medium) 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
- Dunkin hot coffee (medium): the full caffeine guide
- The verified caffeine database
FAQ
Does Starbucks cold brew (grande) or Dunkin hot coffee (medium) have more caffeine? Dunkin hot coffee (medium): 210mg per 14 oz medium versus 205mg per 16 oz grande for Starbucks cold brew (grande).
Which is stronger per ounce? Dunkin hot coffee (medium), at about 15.0mg per fluid ounce versus 12.8mg for Starbucks cold brew (grande).
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