How Does Machine Espresso Work? The machine espresso uses precise pressure, as well as a filtering system that is awe-inspiring to create the coffee you enjoy. What exactly does it work? To make espresso, hot water is pushed under pressure through finely ground coffee. The process is similar to making https://www.coffeee.uk/products/de-longhi-stilosa-ec260-bk-traditional-pump-espresso-coffee-machine