How Does Machine Espresso Work? Machine espresso utilizes precise pressure and mind-blowing filter technology to create the perfect cup of coffee. What exactly is it? To make espresso, hot water is forced under high pressure through finely ground coffee. The process is similar to that of making drip coffee. However https://www.coffeee.uk/products/ihomekee-3-5bar-espresso-and-cappuccino-machine-black