Espresso Machines - Which One is Right For You? Most people imagine this when they think of an espresso machine. They are machines driven by pumps that give the user the control over grinding, tamping and extraction time. Luigi Bezzera, Desiderio Pavoni and others developed patent-pending improvements to the design. https://coffeee15094.blogrelation.com/35830113/the-espresso-machine-sale-case-study-you-ll-never-forget