kombucha (traditionally brewed) vs Pure Leaf black iced tea: which has more caffeine?

Pure Leaf black iced tea carries more total caffeine per serving (54mg per 18.5 oz bottle vs 24mg per 8 oz glass), but ounce for ounce kombucha (traditionally brewed) is actually the stronger drink at about 3mg per fluid ounce against 3. Which one "has more caffeine" depends on whether you measure the container or the concentration.

kombucha (traditionally brewed) vs Pure Leaf black iced tea: the numbers

Sources: kombucha (traditionally brewed)'s figure is verified in our kombucha (traditionally brewed) caffeine guide against Caffeine Informer (source); Pure Leaf black iced tea's figure is verified in our Pure Leaf black iced tea guide against PepsiCo label data (source).

Which one should you pick?

Pick kombucha (traditionally brewed) when you want the lighter dose or a slower ramp, and Pure Leaf black iced tea 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

• kombucha (traditionally brewed): the full caffeine guide
• Pure Leaf black iced tea: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does kombucha (traditionally brewed) or Pure Leaf black iced tea have more caffeine? Pure Leaf black iced tea: 54mg per 18.5 oz bottle versus 24mg per 8 oz glass for kombucha (traditionally brewed).

Which is stronger per ounce? kombucha (traditionally brewed), at about 3.0mg per fluid ounce versus 2.9mg for Pure Leaf black iced tea.