Important Parts Of an Espresso Machine A top espresso machine should deliver a strong and thick-bodied shot of coffee with a full aroma and a strong flavor. This requires high temperatures and pressure. Pay pay attention to the crema. This golden-brown layer gives rich espressos their distinctive flavor and color. https://www.coffeee.uk/products/smeg-ecf01whuk-espresso-coffee-machine-retro-style-white