Buying an Espresso Coffee Machine Espresso machines heat water until close to boiling, and then force it through tightly packed ground coffee in portafilter baskets under pressure. They can also be used to create milk-based drinks. The majority of espresso machines are programmable settings to adjust the strength and volume https://coffeee-uk46127.blogars.com/29116415/three-greatest-moments-in-best-ground-coffee-for-espresso-machine-history