Espresso Coffee Machine

An espresso machine brews coffee by forcing pressurized water near boiling point through a "puck" of ground coffee and a filter in order to produce a thick, concentrated coffee called espresso. The first machine for making espresso was built in the early 1900s by Luigi Bezzera.In the most basic terms, an espresso machine works by using steam, pistons, or pumps to force hot water through the puck of coffee beans. The high pressure inside an espresso machine and the low water ratio to coffee give espresso its distinctive thick consistency.