Important Parts of an Espresso Machine A quality espresso machine must give a rich and strong shot of coffee with a full-bodied aroma and a strong flavor. This requires a high temperature and pressure. Pay attention to the crema. This golden-brown layer gives rich espressos their distinctive flavor and color. https://wwwcoffeeeuk19160.livebloggs.com/35997816/3-ways-in-which-the-espresso-machine-will-influence-your-life