Important Parts of an Espresso Machine A top espresso machine should provide a robust and rich-bodied shot of coffee with a full-bodied aroma and a strong flavor. This requires high temperature and pressure. Pay close attention to the crema. This golden-brown layer is what gives rich espressos their distinctive flavor https://www.coffeee.uk/products/de-longhi-barista-pump-espresso-machine-coffee-cappuccino-maker-black