Pure Leaf black iced tea has more caffeine than Twisted Tea on both counts: 54mg per 18.5 oz bottle against 30mg per 12 oz bottle, and about 3mg per fluid ounce against 2. The serving sizes differ, so the table below shows both ways of counting.
Twisted Tea vs Pure Leaf black iced tea: the numbers
| Twisted Tea | Pure Leaf black iced tea | |
|---|---|---|
| Caffeine per serving | 30mg per 12 oz bottle | 54mg per 18.5 oz bottle |
| Caffeine per fl oz | 2.5mg | 2.9mg |
| Servings to reach 400mg (FDA context) | 13.3 | 7.4 |
Sources: Twisted Tea's figure is verified in our Twisted Tea caffeine guide against brand data / 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 Twisted Tea 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
- Twisted Tea: the full caffeine guide
- Pure Leaf black iced tea: the full caffeine guide
- The verified caffeine database
FAQ
Does Twisted Tea or Pure Leaf black iced tea have more caffeine? Pure Leaf black iced tea: 54mg per 18.5 oz bottle versus 30mg per 12 oz bottle for Twisted Tea.
Which is stronger per ounce? Pure Leaf black iced tea, at about 2.9mg per fluid ounce versus 2.5mg for Twisted Tea.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.