Espresso Machines - Which One is Right For You? This is what people imagine when they think of 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 have patented improvements to the design. https://www-coffeee-uk49991.worldblogged.com/35653881/are-you-making-the-most-of-your-best-home-espresso-machine