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 high pressure. They can also be used to create milk-based drinks. Most espresso machines have programmable settings to adjust the strength and the size of the beverage. https://coffeee-uk06665.atualblog.com/35892673/the-hidden-secrets-of-coffee-espresso-machine