Buying an Espresso Coffee Machine Espresso machines heat the water to near boiling. They then push it under a high pressure through tightly packed ground coffee in portafilters. They also supply steam for drinks made from milk. Most espresso makers include customizable settings for different sizes of drinks and strengths. https://coffeee-uk77819.boyblogguide.com/29213450/get-rid-of-best-ground-coffee-for-espresso-machine-10-reasons-why-you-don-t-need-it