SToK Extra Bold cold brew vs High Brew Double Espresso: which has more caffeine?

SToK Extra Bold cold brew carries more total caffeine per serving (170mg per 12 oz serving vs 140mg per 8 oz can), but ounce for ounce High Brew Double Espresso is actually the stronger drink at about 18mg per fluid ounce against 14. Which one "has more caffeine" depends on whether you measure the container or the concentration.

SToK Extra Bold cold brew vs High Brew Double Espresso: the numbers

Sources: SToK Extra Bold cold brew's figure is verified in our SToK Extra Bold cold brew caffeine guide against SToK FAQ (source); High Brew Double Espresso's figure is verified in our High Brew Double Espresso guide against Caffeine Informer (source).

Which one should you pick?

Pick High Brew Double Espresso when you want the lighter dose or a slower ramp, and SToK Extra Bold cold brew 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

• SToK Extra Bold cold brew: the full caffeine guide
• High Brew Double Espresso: the full caffeine guide
• The verified caffeine database

FAQ

Does SToK Extra Bold cold brew or High Brew Double Espresso have more caffeine? SToK Extra Bold cold brew: 170mg per 12 oz serving versus 140mg per 8 oz can for High Brew Double Espresso.

Which is stronger per ounce? High Brew Double Espresso, at about 17.5mg per fluid ounce versus 14.2mg for SToK Extra Bold cold brew.