How to Properly Maintain and Clean an Espresso Coffee Machine Espresso machines make use of pressure to force water through coffee grounds. This type of brewing creates a stronger beverage than drip coffee. These machines require nine bars of pressure to extract the flavor from the ground. Espresso machines are https://www-coffeee-uk48589.daneblogger.com/29264698/15-documentaries-that-are-best-about-coffee-machines-espresso