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 results in stronger beverages than drip coffee. These machines require nine bar of pressure to extract the flavor from the ground. Espresso machines are https://coffeeeuk95326.suomiblog.com/what-is-coffee-machines-espresso-and-how-to-make-use-of-it-45434047