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 in an espresso portafilter, resulting in a concentrated cup of espresso. Many models let you control important espresso variables like temperature https://wwwcoffeeeuk75653.get-blogging.com/30296163/best-home-espresso-machine-explained-in-fewer-than-140-characters