Benefits of an Espresso Machine In an espresso machine hot water is pushed at high pressure through finely grounded coffee beans. This produces a smooth, rich beverage known as espresso. The first espresso machines were powered by steam. These machines utilize a single boiler to make several drinks at once. https://coffeee-uk14346.designertoblog.com/61238772/how-to-outsmart-your-boss-buy-espresso-machine