How Does Machine Espresso Work? Machine espresso employs precise pressure and mind-blowing filter technology to make the coffee we love. What exactly is it? Espresso is made by forcing hot water under high pressure through finely ground coffee. The process is similar to making drip coffee, but the key difference https://coffeee-uk71798.59bloggers.com/30196028/how-to-save-money-on-best-home-espresso-machine