Espresso Machines - Which One is Right For You? Most people envision this when they think of an espresso machine. They are pumps-driven machines that allow the user to have the control over grinding, tamping and extraction time. Luigi Bezzera and Desiderio Pavoni patented several improvements to this design such https://www-coffeee-uk87505.activablog.com/29276565/3-ways-that-the-espresso-coffee-maker-can-influence-your-life