Benefits of an Espresso Machine In an espresso machine hot water is pushed under high pressure through finely ground coffee beans. This results in a smooth, rich beverage known as espresso. The first espresso machines were powered by steam. They use a single boiler to brew several drinks at once. https://coffeeeuk27557.madmouseblog.com/10245349/are-you-responsible-for-a-buy-espresso-machine-budget-10-terrible-ways-to-spend-your-money