Benefits of an Espresso Machine In an espresso machine, hot water is forced at high pressure through finely grounded coffee beans. This creates a rich smooth drink that's known as espresso. The first espresso machines were powered by steam. They use a single boiler to brew several drinks simultaneously. The https://www-coffeee-uk73270.blog-mall.com/30329049/the-3-greatest-moments-in-espresso-machine-history