How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines use pressure to push water through coffee grounds. This type of brewing creates a stronger beverage than drip coffee. These machines require nine bars of pressure in order to extract the flavor from the ground. There are three https://wwwcoffeeeuk79363.rimmablog.com/29309492/10-key-factors-on-espresso-machine-you-didn-t-learn-in-school