Espresso Machines - Which One is Right For You? This is what most people imagine when they think of an espresso machine. These are pump-driven espresso machines that let the user manage the grinding, tamping and extraction times. Luigi Bezzera, Desiderio Pavoni and others developed patent-pending improvements to the design. https://coffeee-uk05230.wssblogs.com/29820292/why-is-espresso-coffee-maker-so-popular