Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water until near boiling and force it through a tightly packed, finely ground coffee in a portafilter to extract an espresso that is concentrated. Many models let you control key espresso factors such as temperature https://www-coffeee-uk53780.newbigblog.com/35814340/20-up-and-comers-to-follow-in-the-bean-to-cup-espresso-machine-industry