Super Coffee carries more total caffeine per serving (200mg per 12 oz bottle vs 140mg per 8 oz can), but ounce for ounce Suntory Boss Coffee is actually the stronger drink at about 18mg per fluid ounce against 17. Which one "has more caffeine" depends on whether you measure the container or the concentration.
Suntory Boss Coffee vs Super Coffee: the numbers
| Suntory Boss Coffee | Super Coffee | |
|---|---|---|
| Caffeine per serving | 140mg per 8 oz can | 200mg per 12 oz bottle |
| Caffeine per fl oz | 17.5mg | 16.7mg |
| Servings to reach 400mg (FDA context) | 2.9 | 2.0 |
Sources: Suntory Boss Coffee's figure is verified in our Suntory Boss Coffee caffeine guide against Caffeine Informer (source); Super Coffee's figure is verified in our Super Coffee guide against Super Coffee product data (source).
Which one should you pick?
Pick Suntory Boss Coffee when you want the lighter dose or a slower ramp, and Super Coffee 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
- Suntory Boss Coffee: the full caffeine guide
- Super Coffee: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
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Gear from this guide
FAQ
Does Suntory Boss Coffee or Super Coffee have more caffeine? Super Coffee: 200mg per 12 oz bottle versus 140mg per 8 oz can for Suntory Boss Coffee.
Which is stronger per ounce? Suntory Boss Coffee, at about 17.5mg per fluid ounce versus 16.7mg for Super Coffee.
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