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 that allow you to alter the strength and volume https://coffeee03810.shoutmyblog.com/29346361/7-secrets-about-coffee-espresso-machine-that-no-one-will-tell-you