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 make milk-based drinks. Most espresso makers come with customizable settings for different sizes of drinks and strengths. https://www-coffeee-uk23398.fireblogz.com/61143061/ten-stereotypes-about-coffee-espresso-machine-that-don-t-always-hold