Why is it essential to use fresh coffee beans?

Using fresh coffee beans is crucial because they maintain a higher concentration of flavor compounds that contribute to the overall taste and aroma of the coffee. Over time, coffee beans are exposed to air, which leads to oxidation. This process not only diminishes the complexity of the flavors but also introduces staleness, resulting in a less desirable cup of coffee. Fresh beans preserve that rich, vibrant profile, allowing baristas and consumers alike to experience the full range of flavors as intended by the coffee's origin and processing methods.

While pricing could vary, the freshness of beans and how they affect flavor quality is far more critical for brewing enjoyable coffee. Brewing time does not depend on the freshness of the beans in a significant way; rather, it relies on other factors such as grind size and brewing method. Additionally, freshness is important in all brewing methods, not just for espresso, as stale coffee can negatively impact the taste regardless of how it is prepared.