How Does Machine Espresso Work? Machine espresso utilizes precise pressure and mind-blowing filter technology to create the delicious coffee we enjoy. But how exactly does it work? Espresso is made by pushing hot water under pressure through finely-ground coffee. The process is similar to that of making drip coffee. However, https://www.coffeee.uk/products/swan-espresso-machine-milk-frother-scandi-style-nordic-grey