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 makes a stronger drink than drip coffee. These machines require 9 bar of pressure to extract flavor from the coffee grounds. Espresso machines are https://www-coffeee-uk99962.bloggazzo.com/29222165/10-fundamentals-concerning-espresso-machine-you-didn-t-learn-in-school