Important Parts Of an Espresso Machine A good espresso machine should provide a robust and rich-bodied shot of coffee with a full-bodied flavor and intense aroma. This requires high temperatures and pressure. Pay attention to the crema. This golden-brown layer is what gives rich espressos their characteristic flavor and color. https://www.coffeee.uk/products/quest-36569-espresso-machine-with-milk-frother-15-bars-pressure