How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines use pressure to push water through coffee grounds. This type of brewing makes a stronger beverage than drip coffee. These machines require nine bars of pressure in order to extract the flavor from the ground. Espresso machines are https://coffeee-uk57600.dbblog.net/3035792/how-to-tell-if-you-re-ready-for-coffee-machines-espresso