Buying an Espresso Coffee Machine Espresso machines heat water until near boiling and then force it through tightly-packed ground coffee in portafilter baskets under pressure. They also supply steam for milk-based drinks. The majority of espresso machines are programmable settings to adjust the strength and the size of the drink. https://www-coffeee-uk97900.blogthisbiz.com/36052589/ten-coffee-espresso-machine-that-will-make-your-life-better