Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to 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 manage key espresso variables like temperature and pressure. https://wwwcoffeeeuk19278.blogerus.com/52514494/20-things-you-need-to-know-about-bean-to-cup-espresso-machine