A shot of espresso that is equal to 1.5 ounces contains approximately 77 milligrams of caffeine; if the shot is a single ounce, it has about 64 milligrams of caffeine. Espresso serving sizes vary greatly at individual coffee shops. It is brewed by forcing a little bit of almost-boiling water through finely ground coffee grains.
It is safe for the average adult to consume 300 to 400 milligrams of caffeine on a daily basis; this is equal to approximately 5.2 espresso shots. Children 12 and under should not consume caffeine on a daily basis, and kids between the ages of 13 and 18 should not have more than 100 milligrams of caffeine in a single day.Learn More
Depending on the type and origin of coffee used during the brewing, a single shot of espresso can contain between 29 and 100 milligrams of caffeine depending on the serving size. An espresso is a concentrated coffee beverage created by applying heat and water pressure to ground coffee beans.Full Answer >
Caffeine content measured in several different brands of chai tea lattes found a range from 25 milligrams to 120 milligrams per 8 fluid ounces. The caffeine content varies widely because of differences between brands, types of tea used and the amount of milk used to dilute the drink.Full Answer >
An 8-ounce cup of brewed coffee contains between 95 and 200 milligrams of caffeine, while an 8-ounce cup of instant coffee ranges from 27 to 173 milligrams. Single-serve varieties of brewed coffee contain 75 to 150 milligrams, while specialty drinks such as lattes contain between 63 and 175 milligrams.Full Answer >
Black tea may have 14 to 70 milligrams of caffeine per 8-ounce serving. However, decaffeinated black tea has 12 milligrams of caffeine or less per 8-ounce serving. The average amount of caffeine in an 8-ounce serving of black tea is 47 milligrams, according to the U.S. Department of Agriculture.Full Answer >