AMP Energy Original vs brewed green tea: which has more caffeine?

AMP Energy Original has more caffeine than brewed green tea on both counts: 142mg per 16 oz can against 28mg per 8 oz cup, and about 9mg per fluid ounce against 4. The serving sizes differ, so the table below shows both ways of counting.

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.

AMP Energy Original vs brewed green tea: the numbers

Sources: AMP Energy Original's figure is verified in our AMP Energy Original caffeine guide against Caffeine Informer (source); brewed green tea's figure is verified in our brewed green tea guide against USDA FoodData Central (source).

Which one should you pick?

Pick brewed green tea when you want the lighter dose or a slower ramp, and AMP Energy Original 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

• AMP Energy Original: the full caffeine guide
• brewed green tea: the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does AMP Energy Original or brewed green tea have more caffeine? AMP Energy Original: 142mg per 16 oz can versus 28mg per 8 oz cup for brewed green tea.

Which is stronger per ounce? AMP Energy Original, at about 8.9mg per fluid ounce versus 3.5mg for brewed green tea.