Buying an Espresso Coffee Machine Espresso machines heat 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 create milk-based drinks. Most espresso machines have programmable settings to adjust the strength and volume https://www-coffeee-uk97900.blogthisbiz.com/36032951/ten-myths-about-coffee-espresso-machine-that-aren-t-always-true