How an Espresso Coffee Maker Works The machine is easy to use but requires precision when grinding beans and tamping them. It also takes an extended time to warm up. Chris Morocco, Food Director, is a big fan of espresso. When traveling, he carries bags of coffee in his suitcase. https://coffeeeuk69570.blogrenanda.com/35800157/5-laws-that-ll-help-those-in-best-ground-coffee-for-espresso-machine-industry