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 make multiple drinks simultaneously. https://www-coffeee-uk90300.angelinsblog.com/29286780/the-top-reasons-why-people-succeed-on-the-espresso-machine-industry