Buying an Espresso Coffee Machine Espresso machines heat the water to close to boiling. They then push it under a high pressure through tightly packed ground coffee in portafilters. They can also be used to make milk-based drinks. Most espresso makers come with programmable settings for drink sizes and strengths. https://coffeee-uk87516.affiliatblogger.com/82043420/5-laws-to-help-in-the-best-ground-coffee-for-espresso-machine-industry