Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water until near boiling before forcing it through tightly packed, finely ground coffee in the portafilter to create an espresso that is concentrated. Many models let you regulate key espresso elements like temperature and pressure. https://coffeee38978.blogsidea.com/36081061/20-insightful-quotes-about-bean-to-cup-espresso-machine