Espresso Machines - Which One is Right For You? It is what most people think of when they envision an espresso machine. These are machines driven by pumps that allow the user control the grinding, tamping, and extraction times. Luigi Bezzera, Desiderio Pavoni and others invented improvements to the design. https://www-coffeee-uk52992.ssnblog.com/29235247/what-is-the-evolution-of-espresso-machine-sale