How Does Machine Espresso Work? The machine espresso is made using precision pressure, and a filtering technology that is amazing to make the coffee you enjoy. What exactly is it that makes it work? In order to make espresso, hot water is forced under high pressure through finely ground coffee. https://coffeee78434.webdesign96.com/30285027/you-re-about-to-expand-your-espresso-coffee-machine-options