Espresso Machines - Which One is Right For You? This is what people think of when they imagine an espresso machine. They are pump-driven machines that give the user the ability to control grinding, tamping, and extraction time. Luigi Bezzera, Desiderio Pavoni and others have patented improvements to the design. https://wwwcoffeeeuk77709.tkzblog.com/29662818/why-you-should-focus-on-improving-espresso-machine-sale