Benefits of an Espresso Machine In an espresso machine, hot water is forced through the finely grounded coffee beans. This produces a rich smooth and smooth drink, commonly known as espresso. The first espresso machines were steam powered. These machines use only one boiler to make several drinks at once. https://coffeee-uk46127.blogars.com/29070693/three-greatest-moments-in-buy-espresso-machine-history