How an Espresso Coffee Maker Works The machine is simple to operate, but it requires precision when grinding and tamping the beans. It also takes some time to warm up. Chris Morocco, Food Director Chris Morocco, Food Director, is a huge fan of espresso. He has bags of coffee beans https://coffeee32356.tinyblogging.com/best-ground-coffee-for-espresso-machine-a-simple-definition-73553262