Espresso Machines - Which One is Right For You? It is what most people think of when they envision an espresso machine. These are pump-driven espresso machines which allow the user to manage the grinding, tamping and extraction time. Luigi Bezzera and Desiderio Pavoni patented several improvements to this design https://coffeee81591.nizarblog.com/29933987/10-meetups-on-espresso-machine-sale-you-should-attend