Important Parts of an Espresso Machine A high-quality espresso machine will create a shot of espresso with a rich body, a rich flavor and an strong aroma. This requires high pressure and temperature. Pay close attention to the crema. This golden-brown layer gives rich espressos their characteristic taste and color. https://coffeee-uk87516.affiliatblogger.com/81995638/the-unspoken-secrets-of-espresso-machine