How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines force water through the coffee grounds using pressure. This type of brewing creates a stronger beverage than drip coffee. The machines require nine bars of pressure to extract the flavor from the ground. Espresso machines are available in https://coffeee57011.blogripley.com/30370978/the-reasons-to-focus-on-the-improvement-of-espresso-machine