Water Joe (caffeinated water) carries more total caffeine per serving (70mg per 16.9 oz bottle vs 60mg per 8 oz cup (1 tsp, ~2g)), but ounce for ounce matcha is actually the stronger drink at about 8mg per fluid ounce against 4. Which one "has more caffeine" depends on whether you measure the container or the concentration.
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.
Water Joe (caffeinated water) vs matcha: the numbers
| Water Joe (caffeinated water) | matcha | |
|---|---|---|
| Caffeine per serving | 70mg per 16.9 oz bottle | 60mg per 8 oz cup (1 tsp, ~2g) |
| Caffeine per fl oz | 4.1mg | 7.5mg |
| Servings to reach 400mg (FDA context) | 5.7 | 6.7 |
Sources: Water Joe (caffeinated water)'s figure is verified in our Water Joe (caffeinated water) caffeine guide against Water Joe / Caffeine Informer (source); matcha's figure is verified in our matcha guide against USDA FoodData Central (per-gram) / compiled (source).
Which one should you pick?
Pick matcha when you want the lighter dose or a slower ramp, and Water Joe (caffeinated water) 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
- Water Joe (caffeinated water): the full caffeine guide
- matcha: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
FAQ
Does Water Joe (caffeinated water) or matcha have more caffeine? Water Joe (caffeinated water): 70mg per 16.9 oz bottle versus 60mg per 8 oz cup (1 tsp, ~2g) for matcha.
Which is stronger per ounce? matcha, at about 7.5mg per fluid ounce versus 4.1mg for Water Joe (caffeinated water).
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