Benefits of an Espresso Machine In an espresso machine hot water is forced 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. These machines use one boiler to make multiple drinks simultaneously. https://www-coffeee-uk48660.answerblogs.com/29960462/15-trends-that-are-coming-up-about-buy-espresso-machine