Benefits of an Espresso Machine In an espresso machine hot water is forced under pressure to a high temperature through finely ground coffee beans. This results in a rich, smooth drink that's commonly called espresso. The first espresso machines were powered by steam. These machines use one boiler to brew https://wwwcoffeeeuk03517.laowaiblog.com/29117777/a-brief-history-of-the-evolution-of-espresso-machine