Benefits of an Espresso Machine In an espresso machine hot water is pushed under high pressure through finely ground coffee beans. This results in a smooth and rich drink known as espresso. The first espresso machines were powered by steam. They use a single boiler to brew multiple drinks simultaneously. https://wwwcoffeeeuk77709.tkzblog.com/29663048/15-terms-everybody-within-the-espresso-machine-industry-should-know