Espresso Machines - Which One is Right For You? Many people think of this when they think of an espresso machine. They are pump-driven machines that allow the user to have control over grinding, tamping, and extraction time. Luigi Bezzera and Desiderio Pavoni patented several improvements to this design, including https://www.coffeee.uk/products/gaggia-ri8423-espresso-machine-freestanding-manual-white