Espresso Coffee : The Base for Coffee Drinks


Caffè espresso, or just espresso, is a concentrated beverage brewed by forcing hot water under pressure through finely ground coffee.

Compared to other coffee brewing methods, espresso often has a thicker consistency, a higher concentration of dissolved solids, and crema (foam). As a result of the pressurized brewing process, all of the flavours and chemicals in a typical cup of coffee are very concentrated. For this reason, espresso is the base for other drinks, such as lattes, cappuccino, macchiato, mochas, and americanos.

The first machines were introduced in Italy at the beginning of the 20th Century, with the first patent being filed by Luigi Bezzera of Milan, Italy, in 1901, who invented a steam pressure system. In 1938, Cresemonesi introduced a piston based espresso machine, which eliminated the burnt taste associated with the steam pressure units.

Espresso is made by forcing hot water under high pressure through a tightly compacted finely ground coffee. Generally, one uses an espresso machine to make espresso, although there are stove top espresso makers and hand operated devices such as the AeroPress. The act of producing a shot of espresso is often termed "pulling" a shot, originating from lever espresso machines which require pulling down a handle attached to a spring-loaded piston, forcing hot water through the coffee at high pressure. Today, however, it is more common for the pressure to be generated by steam or a pump. This process produces an almost syrupy beverage by extracting and emulsifying the oils in the ground coffee.


Espresso is not a specific bean or roast level; it is a coffee brewing method. Any bean or roasting level can be used to produce authentic espresso and different beans have unique flavor profiles lending themselves to different roasting levels and styles. [source : Espresso]

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