How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines make use of pressure to push water through coffee grounds. This type of brewing produces a stronger drink than drip coffee. These machines require nine bar of pressure to extract the flavor from the ground. There are three https://coffeeeuk84010.blogoscience.com/35872249/coffee-machines-espresso-tips-from-the-best-in-the-industry