How Does Machine Espresso Work? Machine espresso uses precision pressure and mind-blowing filter technology to create the delicious coffee we enjoy. What exactly is it? In order to make espresso hot water is forced under high pressure through finely ground coffee. The process is similar to making drip coffee but https://www.coffeee.uk/products/de-longhi-pump-espresso-machine-1450w-1-4l-reflection-bronze