Pure Leaf black iced tea vs High Brew Double Espresso: which has more caffeine?

High Brew Double Espresso has more caffeine than Pure Leaf black iced tea on both counts: 140mg per 8 oz can against 54mg per 18.5 oz bottle, and about 18mg per fluid ounce against 3. 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.

Pure Leaf black iced tea vs High Brew Double Espresso: the numbers

Sources: Pure Leaf black iced tea's figure is verified in our Pure Leaf black iced tea caffeine guide against PepsiCo label data (source); High Brew Double Espresso's figure is verified in our High Brew Double Espresso guide against Caffeine Informer (source).

The concentration gap is the striking part: High Brew Double Espresso packs roughly 6 times the caffeine per ounce. Sipping speed matters at that density; a 8 oz can finished in minutes hits differently than the same milligrams spread over a slow cup.

Which one should you pick?

Pick Pure Leaf black iced tea when you want the lighter dose or a slower ramp, and High Brew Double Espresso 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

• Pure Leaf black iced tea: the full caffeine guide
• High Brew Double Espresso: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index

FAQ

Does Pure Leaf black iced tea or High Brew Double Espresso have more caffeine? High Brew Double Espresso: 140mg per 8 oz can versus 54mg per 18.5 oz bottle for Pure Leaf black iced tea.

Which is stronger per ounce? High Brew Double Espresso, at about 17.5mg per fluid ounce versus 2.9mg for Pure Leaf black iced tea.