How Does Machine Espresso Work? Machine espresso uses precision pressure and mind-blowing filter technology to create the perfect cup of coffee. What exactly does it work? Espresso is produced by pushing hot water under pressure through finely ground coffee. The process is similar to making drip coffee. However the pressure https://www.coffeee.uk/products/smeg-ecf01whuk-espresso-coffee-machine-retro-style-white