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, rich drink referred to as espresso. The first espresso machines were steam-driven. They utilize a single boiler to brew several drinks at one time. https://coffeeeuk79094.blogozz.com/29265641/15-up-and-coming-espresso-machine-bloggers-you-need-to-be-keeping-an-eye-on