Benefits of an Espresso Machine In an espresso machine, hot water is forced through finely ground coffee beans. This produces a rich, smooth drink that's commonly known as espresso. The first espresso machines were powered by steam. These machines use one boiler to make several drinks at the same time. https://www-coffeee-uk48589.daneblogger.com/29265593/it-s-the-espresso-machine-case-study-you-ll-never-forget