Espresso Machines - Which One is Right For You? This is what people think of when they imagine an espresso machine. They are machines driven by pumps that allow the user to have control over grinding, tamping and extraction time. Luigi Bezzera, Desiderio Pavoni and others developed patent-pending improvements to https://www-coffeee-uk03044.bloguerosa.com/29116787/everything-you-need-to-be-aware-of-espresso-coffee-maker