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 create milk-based drinks. Most espresso makers come with adjustable settings for the size of the drink and strengths. https://coffeee15094.blogrelation.com/35895494/the-best-ground-coffee-for-espresso-machine-case-study-you-ll-never-forget