Coffee Machine Espresso Espresso coffee is produced by forcing hot water under pressure into the grounds. There's a lot that goes behind the scenes to deliver the same quality of coffee. Water temperature and pressure are the two most crucial factors. You can regulate these variables using a high-quality espresso https://www-coffeee-uk02441.elbloglibre.com/29787023/from-all-over-the-web-20-fabulous-infographics-about-best-budget-espresso-machine