Important Parts of an Espresso Machine A top espresso machine should give a rich and strong shot of coffee with a full-bodied flavor and intense aroma. This requires high levels of temperature and pressure. Pay attention to the crema. This golden-brown layer is what gives rich espressos their distinctive flavor https://wwwcoffeeeuk07003.theobloggers.com/35896188/15-things-you-don-t-know-about-espresso-machine