Similar to the term ""coffee"", espresso holds more than one definition. Espresso is a beverage, but it can also refer to a specific brewing method. A standard shot of espresso is typically 1 oz and made from a pressurized extraction using finely ground coffee. It has a wonderfully rich body with a top layer of crema, or microfoam, which reveals its freshness and preparation accuracy. Espresso is also the starting point for popular drinks like the Cappuccino when mixed with foamed milk or the Americano when diluted with hot water.