Benefits of an Espresso Machine In an espresso machine, hot water is pushed at high pressure through finely grounded coffee beans. This results in a smooth, rich beverage known as espresso. The first espresso machines were steam-powered. They use a single boiler to brew several drinks at the same time. https://wwwcoffeeeuk37518.activoblog.com/30488879/how-to-get-more-value-with-your-espresso-machine