Buying an Espresso Coffee Machine Espresso machines heat water to a temperature near boiling. They then push it under high pressure through tightly packed ground coffee into portafilters. They also supply steam for drinks made from milk. Most espresso makers include customizable settings for different sizes of drinks and strengths. https://www-coffeee-uk49991.worldblogged.com/35681425/the-most-powerful-sources-of-inspiration-of-coffee-espresso-machine