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 pressure and temperature. Pay attention to the crema. This golden-brown layer gives rich espressos their characteristic taste and color. https://www.coffeee.uk/products/shardor-20-bar-espresso-machine-with-milk-frother