What impact does developing coffee for espresso have on the roast profile?

• A. It requires a lighter roast profile
• B. It requires a darker roast profile
• C. It has no effect on the roast profile
• D. It affects the grind size only

Answer: (B)

Developing coffee for espresso typically requires a darker roast profile. This is primarily due to the brewing method of espresso, which involves forcing hot water through finely-ground coffee under pressure. A darker roast profile tends to produce more soluble compounds, leading to a richer and bolder flavor that is characteristic of espresso. Darker roasts can enhance sweetness, body, and create a more balanced cup by minimizing acidity, which can become overpowering in a concentrated espresso shot.

Moreover, a darker roast helps to accentuate the crema – the golden frothy layer that forms on top of a well-pulled espresso shot – which is highly valued for its flavor and texture. The development of oils on the coffee bean surface during the roasting process also contributes to this desirable crema.

In contrast, a lighter roast profile might lead to higher acidity levels and more pronounced fruity or floral flavors, which can be less suitable for espresso. This is why roasters often aim for a darker profile when creating blends specifically for espresso. It ensures that the final beverage reflects the richness and complexity that espresso drinkers expect.