How Does Machine Espresso Work? The machine espresso is made using precision pressure, and filter technology that is mind-blowing to make the coffee you enjoy. What exactly is it? To make espresso hot water is pushed under pressure through finely ground coffee. The process is similar to making drip coffee. https://wwwcoffeeeuk07003.theobloggers.com/35895141/20-fun-facts-about-best-home-espresso-machine