How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines push water through the coffee grounds using pressure. This type of brewing results in an even stronger drink than drip coffee. These machines require nine bars of pressure to extract the flavor from the ground. There are three https://wwwcoffeeeuk08319.sharebyblog.com/29675294/15-startling-facts-about-coffee-machines-espresso-you-ve-never-known