Buying an Espresso Coffee Machine Espresso machines heat water until near boiling and then force it through tightly packed ground coffee into portafilters under pressure. They can also be used to create milk-based drinks. The majority of espresso makers have adjustable settings for the size of the drink and strengths. https://coffeee-uk50702.full-design.com/10-things-your-competitors-inform-you-about-best-ground-coffee-for-espresso-machine-72467519