How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines push water through the coffee grounds using pressure. This type of brewing makes stronger beverages than drip coffee. These machines require nine bars of pressure to extract the flavor from the ground. Espresso machines are available in three https://coffeee03810.shoutmyblog.com/29300200/the-3-greatest-moments-in-espresso-machine-history