Espresso Machines - How to Choose the Right Espresso Machine for You Espresso machines heat water to close to boiling, then force it through tightly packed, finely ground coffee in a portafilter to extract an espresso cup that is concentrated. Many models allow you to control important espresso variables like https://coffeee15094.blogrelation.com/35856403/15-unquestionably-reasons-to-love-best-home-espresso-machine