The roast level of espresso beans affects the taste and intensity of the coffee. Dark roasts are commonly used for espresso due to their bold flavor and low acidity. However, best espresso beans in the world some coffee enthusiasts prefer medium roas... moreThe roast level of espresso beans affects the taste and intensity of the coffee. Dark roasts are commonly used for espresso due to their bold flavor and low acidity. However, best espresso beans in the world some coffee enthusiasts prefer medium roasts for a more balanced and nuanced flavor profile, highlighting the beans' unique characteristics.