Forto Coffee Shot has more caffeine than Starbucks cold brew (grande) on both counts: 225mg per 2 oz shot against 205mg per 16 oz grande, and about 112mg per fluid ounce against 13. 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.
Forto Coffee Shot vs Starbucks cold brew (grande): the numbers
| Forto Coffee Shot | Starbucks cold brew (grande) | |
|---|---|---|
| Caffeine per serving | 225mg per 2 oz shot | 205mg per 16 oz grande |
| Caffeine per fl oz | 112.5mg | 12.8mg |
| Servings to reach 400mg (FDA context) | 1.8 | 2.0 |
Sources: Forto Coffee Shot's figure is verified in our Forto Coffee Shot 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).
The concentration gap is the striking part: Forto Coffee Shot packs roughly 9 times the caffeine per ounce. Sipping speed matters at that density; a 2 oz shot finished in minutes hits differently than the same milligrams spread over a slow cup.
Which one should you pick?
Pick Starbucks cold brew (grande) when you want the lighter dose or a slower ramp, and Forto Coffee Shot 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
- Forto Coffee Shot: 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
As an Amazon Associate, Barista Life earns from qualifying purchases.
Gear from this guide
FAQ
Does Forto Coffee Shot or Starbucks cold brew (grande) have more caffeine? Forto Coffee Shot: 225mg per 2 oz shot versus 205mg per 16 oz grande for Starbucks cold brew (grande).
Which is stronger per ounce? Forto Coffee Shot, at about 112.5mg per fluid ounce versus 12.8mg for Starbucks cold brew (grande).
Barista Life runs on coffee people. Browse the Barista Life shop to support the site.
Get the good coffee stuff
One email a week: what we verified, what is worth buying, and what is not. No spam, unsubscribe any time.