Buying an Espresso Coffee Machine Espresso machines heat the water to a temperature near boiling and then force 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 include programmable settings for drink sizes and strengths. https://www-coffeee-uk70676.mybloglicious.com/50868654/15-things-you-ve-never-known-about-coffee-espresso-machine