Espresso is a concentrated form of coffee served in small, strong shots and is the base for many coffee drinks. The difference between coffee and espresso is in the grind and the treatment of the beans. It's made from the same beans as coffee but is stronger, thicker, and higher in caffeine.

The beans are ground to a finer consistency than coffee and firmly packed before hot water is forced through using an espresso machine. This results in a shot of espresso, which can be enjoyed as-is or used to make a long list of drinks. Espresso is typically served in smaller servings than coffee, it has less caffeine per serving.