It all depends on how the coffee has been roasted and brewed and how much coffee is used. Generally, one double shot (2oz) of espresso has about 80mg while a 12oz cup of drip coffee contains 120mg of caffeine.
It all depends on how the coffee has been roasted and brewed and how much coffee is used. Generally, one double shot (2oz) of espresso has about 80mg while a 12oz cup of drip coffee contains 120mg of caffeine.