How Does Machine Espresso Work? Machine espresso uses precision pressure and incredible filter technology to produce the coffee we love. How exactly does it work? To make an espresso, hot water is forced under high pressure through finely ground coffee. The process is similar to that of making drip coffee. https://coffeee-uk50702.full-design.com/indisputable-proof-of-the-need-for-best-home-espresso-machine-72438287