How Does Machine Espresso Work? The machine espresso makes use of precision pressure, and filtering technology that is amazing to make the coffee you love. What exactly does it work? To make an espresso, hot water is pushed 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