How Does Machine Espresso Work? Machine espresso utilizes precise pressure and mind-blowing filter technology to make the coffee we love. What exactly is it that makes it work? Espresso is made by forcing hot water under high pressure through finely-ground coffee. The process is similar to making drip coffee, but https://www.coffeee.uk/products/tower-espresso-machine-with-frothing-function-glass-carafe