Buying an Espresso Coffee Machine Espresso machines heat the water to a temperature near boiling and then force it under pressure to pass through tightly packed ground coffee in portafilters. They can also be used to make milk-based drinks. The majority of espresso makers have programmable settings for drink sizes https://coffeeeuk33029.bloggosite.com/36353878/what-do-you-know-about-coffee-espresso-machine