Important Parts of an Espresso Machine A quality espresso machine must deliver a strong and thick-bodied shot of coffee with a full-bodied aroma and a strong flavor. This requires a high temperatures and pressure. Pay attention to the crema. This golden-brown layer gives rich espressos their characteristic taste and color. https://www.coffeee.uk/products/de-longhi-stilosa-ec-230-bk-espresso-machine-black