Mountain Dew Baja Blast has more caffeine than Big Red: 59mg vs 34mg in the same 12 oz can. That is a 25mg gap, and since the cans match, the per-serving number is the whole story.
Big Red vs Mountain Dew Baja Blast: the numbers
| Big Red | Mountain Dew Baja Blast | |
|---|---|---|
| Caffeine per serving | 34mg per 12 oz can | 59mg per 12 oz can |
| Caffeine per fl oz | 2.8mg | 4.9mg |
| Servings to reach 400mg (FDA context) | 11.8 | 6.8 |
Sources: Big Red's figure is verified in our Big Red caffeine guide against Caffeine Informer (source); Mountain Dew Baja Blast's figure is verified in our Mountain Dew Baja Blast guide against PepsiCo product facts (source).
Which one should you pick?
Pick Big Red when you want the lighter dose or a slower ramp, and Mountain Dew Baja Blast 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
- Big Red: the full caffeine guide
- Mountain Dew Baja Blast: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
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Gear from this guide
FAQ
Does Big Red or Mountain Dew Baja Blast have more caffeine? Mountain Dew Baja Blast: 59mg per 12 oz can versus 34mg per 12 oz can for Big Red.
Which is stronger per ounce? Mountain Dew Baja Blast, at about 4.9mg per fluid ounce versus 2.8mg for Big Red.
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.
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