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 provide steam for milk-based drinks. Most espresso machines have programmable settings that can alter the strength and the size of the beverage. https://coffeeeuk53951.widblog.com/84830655/how-best-ground-coffee-for-espresso-machine-changed-over-time-evolution-of-best-ground-coffee-for-espresso-machine