Important Parts Of an Espresso Machine A good espresso machine should provide a robust and rich-bodied shot of coffee, with a full-bodied aroma and a strong flavor. This requires high pressure and temperature. Pay close attention to the crema. This golden-brown layer gives rich espressos their characteristic flavor and color. https://www.coffeee.uk/products/casabrews-20-bar-espresso-maker-with-milk-frother