Espresso Machines - Which One is Right For You? This is what most people think of when they imagine an espresso machine. These are pump-driven espresso machines that let the user manage the grinding, tamping and extraction time. Luigi Bezzera, Desiderio Pavoni and others developed patent-pending improvements to the design. https://coffeeeuk95326.suomiblog.com/15-terms-everybody-working-in-the-espresso-machine-sale-industry-should-know-45434531