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 rich smooth and smooth drink, commonly called espresso. The first espresso machines were steam-powered. They use an individual boiler to brew several drinks at once. https://www-coffeee-uk00081.techionblog.com/29808638/the-three-greatest-moments-in-buy-espresso-machine-history