Buying an Espresso Coffee Machine Espresso machines heat water to near boiling and then force it through tightly packed ground coffee into portafilter baskets under high 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://coffeee66811.ttblogs.com/9392711/7-secrets-about-coffee-espresso-machine-that-no-one-will-tell-you