What can happen to perceived acidity in darker roasts?

• A. It increases significantly
• B. It decreases significantly
• C. It remains unchanged
• D. It becomes more pronounced

Answer: (B)

In darker roasts, perceived acidity decreases significantly. This outcome occurs due to the roasting process, where high heat leads to the breakdown of acids in the coffee beans. As the roast profile progresses towards darker levels, the chemical composition of the beans changes, resulting in the degradation of certain organic acids that contribute to a bright, acidic flavor.

Darker roasting tends to emphasize the sweetness and body of the coffee while muting or eliminating the higher, more acidic notes typical in lighter roasts. Therefore, coffees that are roasted longer or at higher temperatures generally exhibit a smoother, rounder flavor profile that lacks the sharper acidity found in lighter roasts. Understanding this change is crucial for roasters and baristas as they aim to craft specific flavor experiences in their brewed coffee.