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 a concentrated cup of espresso. Many models let you control key espresso factors like temperature and pressure. https://wwwcoffeeeuk71680.blogdiloz.com/29209451/why-we-why-we-best-home-espresso-machine-and-you-should-too