Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to near boiling before forcing it through a tightly packed finely ground coffee into a portafilter to extract an espresso cup that is concentrated. Many models let you manage key espresso variables like temperature https://coffeee-uk01146.blog2freedom.com/29814669/a-trip-back-in-time-a-trip-back-in-time-what-people-talked-about-bean-to-cup-espresso-machine-20-years-ago