"Espresso is brewed by using an espresso machine to force a small amount of nearly boiling water and steam – about 86 to 95 °C (187 to 203 °F) – under pressure through finely ground and compacted coffee. The espresso machine was patented in 1901 and developed in Italy. Espresso spread in popularity to the UK in the 1950s

Espresso is generally denser than coffee brewed by other methods, and has a creamy foam on top termed "crema".Espresso is the base for a number of other coffee drinks, such as latte, cappuccino, 

macchiato, mocha, and Americano." 

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