Buying an Espresso Coffee Machine Espresso machines heat the water to close to boiling. They then push it under pressure to pass through tightly packed ground coffee into portafilters. They also supply steam for milk-based drinks. Most espresso makers come with customizable settings for different sizes of drinks and strengths. https://www-coffeee-uk53780.newbigblog.com/35815696/the-secret-secrets-of-coffee-espresso-machine