Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to close to boiling, then force it through a tightly packed finely ground coffee in an espresso portafilter, resulting in a concentrated cup of espresso. Many models allow you to regulate key espresso elements, https://coffeee89287.blogdal.com/30225319/do-you-know-how-to-explain-best-home-espresso-machine-to-your-mom