Is a strong, flavorful coffee brewed by forcing hot water through finely ground coffee beans. In Italian, espresso means "pressed out" or "express". Espresso differs greatly from the common drip brewed coffee drink in its thick concentrated consistency, and robust flavor. Due to its potency, straight espresso (espresso served without sweetener or milk, analogous to black coffee) is considered by some to be an acquired taste, and is served in small amounts called shots. Many coffee aficionados order their single or double with a little glass of cold still water to clear the palate. Espresso is often used as the foundation for other drinks, such as lattes, cappuccino, mochas and many more. A key component in the flavor of espresso is a golden foam composed of oils, proteins, and sugars, called crema which floats on the surface.