Snapple iced tea carries more total caffeine per serving (37mg per 16 oz bottle vs 28mg per 8 oz cup), but ounce for ounce brewed green tea is actually the stronger drink at about 4mg per fluid ounce against 2. Which one "has more caffeine" depends on whether you measure the container or the concentration.
brewed green tea vs Snapple iced tea: the numbers
| brewed green tea | Snapple iced tea | |
|---|---|---|
| Caffeine per serving | 28mg per 8 oz cup | 37mg per 16 oz bottle |
| Caffeine per fl oz | 3.5mg | 2.3mg |
| Servings to reach 400mg (FDA context) | 14.3 | 10.8 |
Sources: brewed green tea's figure is verified in our brewed green tea caffeine guide against USDA FoodData Central (source); Snapple iced tea's figure is verified in our Snapple iced tea guide against brand data / Caffeine Informer (source).
Which one should you pick?
Pick brewed green tea when you want the lighter dose or a slower ramp, and Snapple 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
- brewed green tea: the full caffeine guide
- Snapple iced tea: the full caffeine guide
- The verified caffeine database
FAQ
Does brewed green tea or Snapple iced tea have more caffeine? Snapple iced tea: 37mg per 16 oz bottle versus 28mg per 8 oz cup for brewed green tea.
Which is stronger per ounce? brewed green tea, at about 3.5mg per fluid ounce versus 2.3mg for Snapple iced 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.