How Does Machine Espresso Work? Machine espresso employs precise pressure and incredible filter technology to produce the delicious coffee we enjoy. How exactly does it work? Espresso is made by forcing hot water under high pressure through finely ground coffee. The process is similar to that of making drip coffee. https://www-coffeee-uk46497.post-blogs.com/51245385/the-ultimate-glossary-of-terms-about-espresso-machine-sale