A double espresso (also called a doppio), which is about 2 ounces, typically contains around 120 to 130 milligrams of caffeine. The most commonly cited figure is approximately 126 milligrams of caffeine per double shot
. However, the exact caffeine content can vary depending on factors such as the type of coffee bean, roast level, and brewing technique, with some estimates ranging from about 80 mg up to 185 mg per double shot
. In summary:
- Standard double espresso: ~126 mg caffeine (most common estimate)
- Range: roughly 80 mg to 185 mg depending on variables
This amount is roughly equivalent to the caffeine in a medium cup of brewed coffee but concentrated in a smaller volume, leading to a quicker caffeine absorption and stronger immediate effect
