Starbucks cold brew (grande) has more caffeine than Tim Hortons brewed coffee on both counts: 205mg per 16 oz grande against 140mg per 14 oz medium, and about 13mg per fluid ounce against 10. The serving sizes differ, so the table below shows both ways of counting.
Tim Hortons brewed coffee vs Starbucks cold brew (grande): the numbers
| Tim Hortons brewed coffee | Starbucks cold brew (grande) | |
|---|---|---|
| Caffeine per serving | 140mg per 14 oz medium | 205mg per 16 oz grande |
| Caffeine per fl oz | 10.0mg | 12.8mg |
| Servings to reach 400mg (FDA context) | 2.9 | 2.0 |
Sources: Tim Hortons brewed coffee's figure is verified in our Tim Hortons brewed coffee caffeine guide against Caffeine Informer (source); Starbucks cold brew (grande)'s figure is verified in our Starbucks cold brew (grande) guide against Starbucks menu data (source).
Which one should you pick?
Pick Tim Hortons brewed coffee 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
- Tim Hortons brewed coffee: the full caffeine guide
- Starbucks cold brew (grande): the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Tim Hortons brewed coffee or Starbucks cold brew (grande) have more caffeine? Starbucks cold brew (grande): 205mg per 16 oz grande versus 140mg per 14 oz medium for Tim Hortons brewed coffee.
Which is stronger per ounce? Starbucks cold brew (grande), at about 12.8mg per fluid ounce versus 10.0mg for Tim Hortons brewed coffee.
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