Buying an Espresso Coffee Machine Espresso machines heat water until near-boiling and then force it through tightly-packed ground coffee in portafilter baskets under high pressure. They can also be used to create milk-based drinks. The majority of espresso makers have adjustable settings for the size of the drink and strengths. https://wwwcoffeeeuk73000.aboutyoublog.com/31189233/15-reasons-you-must-love-best-ground-coffee-for-espresso-machine