Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to near boiling and force it through a tightly packed finely ground coffee in the portafilter to create a concentrated cup of espresso. Many models allow you to regulate key espresso elements, such as https://coffeee85867.theisblog.com/30006844/these-are-the-most-common-mistakes-people-do-with-bean-to-cup-espresso-machine