How an Espresso Coffee Maker Works The machine is simple to use, but it requires precision when grinding and tamping the beans. It takes time to warm up. Chris Morocco, Food Director, is a big fan of espresso. When when he travels, he puts bags of coffee in his luggage. https://coffeee21852.goabroadblog.com/29256050/the-best-ground-coffee-for-espresso-machine-awards-the-top-worst-or-the-most-bizarre-things-we-ve-seen