How Does Machine Espresso Work? The machine espresso uses precise pressure and filter technology that is awe-inspiring to make the coffee you love. What exactly is it? Espresso is made by forcing hot water under high pressure through finely ground coffee. The process is similar to that of making drip https://www.coffeee.uk/products/de-longhi-nespresso-gran-lattissima-en650-b-1400-w-black