How Does Machine Espresso Work? Machine espresso employs precise pressure and amazing filter technology to make the delicious coffee we enjoy. What exactly is it that makes it work? Espresso is produced by pushing hot water under pressure through finely-ground coffee. The process is similar to making drip coffee however https://www.coffeee.uk/products/sage-nespresso-creatista-plus-coffee-machine-brushed-stainless