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, Desiderio Pavoni and others have patented improvements to the design. https://www.coffeee.uk/products/quest-36569-espresso-machine-with-milk-frother-15-bars-pressure