Buying an Espresso Coffee Machine Espresso machines heat the water to close to boiling and then force it under high pressure through tightly packed ground coffee portafilters. They can also be used to create milk-based drinks. The majority of espresso machines are programmable settings to adjust the strength and size https://coffeee-uk72401.webbuzzfeed.com/30350143/a-peek-at-the-secrets-of-coffee-espresso-machine