Buying an Espresso Coffee Machine Espresso machines heat water to close to 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 include adjustable settings for the size of the drink and strengths. https://coffeee38978.blogsidea.com/36081748/what-you-can-do-to-get-more-with-your-best-ground-coffee-for-espresso-machine