How Does Machine Espresso Work? The machine espresso is made using precision pressure, and a filter technology that is awe-inspiring to create the coffee you enjoy. What exactly does it work? Espresso is produced by pushing hot water under pressure through finely ground coffee. The process is similar to making https://www.coffeee.uk/products/de-longhi-ecp3630-espresso-cappuccino-machine-with-adjustable-frother