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 also supply steam for milk-based drinks. Most espresso machines have programmable settings that can alter the strength and size of the beverage. https://www-coffeee-uk46497.post-blogs.com/51317098/12-facts-about-best-ground-coffee-for-espresso-machine-to-make-you-seek-out-other-people