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 high temperature and pressure. Pay close attention to the crema. This golden-brown layer gives rich espressos their characteristic taste and color. https://www-coffeee-uk33079.dreamyblogs.com/30129188/coffee-machine-espresso-s-history-history-of-coffee-machine-espresso