Coffee Machine Espresso Coffee machine espresso creates a rich cup of coffee using hot water pushed under pressure through tightly compacted grounds. There are many processes that take place behind the scenes to guarantee the same quality of coffee. Temperature and pressure of water are the two most crucial factors. https://www-coffeee-uk47875.theblogfairy.com/29363707/what-to-say-about-best-budget-espresso-machine-to-your-mom