Buying an Espresso Coffee Machine Espresso machines heat water until close to boiling, and then force it through tightly packed ground coffee into portafilters under high pressure. They can also be used to create milk-based drinks. Most espresso makers come with customizable settings for different sizes of drinks and strengths. https://coffeeeuk70400.blogprodesign.com/51799527/10-facts-about-best-ground-coffee-for-espresso-machine-that-will-instantly-put-you-in-a-good-mood