How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines use pressure to push water through coffee grounds. This type of brewing produces a stronger drink than drip coffee. The machines require nine bars of pressure in order to extract the flavor from the ground. There are three https://coffeee-uk72401.webbuzzfeed.com/30301722/coffee-machines-espresso-tips-that-will-change-your-life