Starbucks Matcha Latte (grande) vs Pure Leaf black iced tea: which has more caffeine?

Starbucks Matcha Latte (grande) has more caffeine than Pure Leaf black iced tea on both counts: 90mg per 16 oz grande against 54mg per 18.5 oz bottle, and about 6mg per fluid ounce against 3. The serving sizes differ, so the table below shows both ways of counting.

Starbucks Matcha Latte (grande) vs Pure Leaf black iced tea: the numbers

Sources: Starbucks Matcha Latte (grande)'s figure is verified in our Starbucks Matcha Latte (grande) caffeine guide against Caffeine Informer Starbucks guide (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 Pure Leaf black iced tea when you want the lighter dose or a slower ramp, and Starbucks Matcha Latte (grande) 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

• Starbucks Matcha Latte (grande): 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 Starbucks Matcha Latte (grande) or Pure Leaf black iced tea have more caffeine? Starbucks Matcha Latte (grande): 90mg per 16 oz grande versus 54mg per 18.5 oz bottle for Pure Leaf black iced tea.

Which is stronger per ounce? Starbucks Matcha Latte (grande), at about 5.6mg per fluid ounce versus 2.9mg for Pure Leaf black iced tea.