How an Espresso Coffee Maker Works The machine is easy to use, but it requires precision when grinding and tamping beans. It takes time to warm up. Chris Morocco, Food Director, is a big fan of espresso. He carries bags of coffee beans in his luggage each time he travels. https://www-coffeee-uk06337.glifeblog.com/29161253/7-simple-secrets-to-totally-refreshing-your-best-ground-coffee-for-espresso-machine