How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines make use of pressure to force water through coffee grounds. This method of brewing creates an even stronger drink than drip coffee. The machines require 9 bars of pressure to extract flavor from the grounds. There are three https://coffeeeuk07083.gynoblog.com/29291691/5-arguments-coffee-machines-espresso-is-actually-a-beneficial-thing