As a coffee enthusiast and someone who has worked as a barista, I can shed some light on the types of coffee beans that are commonly used by baristas. When it comes to espresso, the type of beans used can greatly impact the flavor and overall quality of the shot.
Baristas often opt for medium-dark to dark roasts as their house espresso for a variety of reasons. These roasts are known for their rich and bold flavor profiles, which can stand up to the intense espresso-brewing process. The brewing method used in espresso machines extracts flavors differently than other brewing methods, and the darker roasts tend to hold up well under the high pressure and short extraction time.
One of the key reasons for using dark roasts for espresso is the fact that they have a lower acidity compared to lighter roasts. This lower acidity helps in achieving a smoother and more balanced shot of espresso. While acidity can be desirable in other brewing methods, it can sometimes overpower the flavor of espresso, resulting in a less enjoyable experience.
Another advantage of dark roasts is their ability to develop and enhance the caramelization and bittersweet notes in the coffee beans. The longer roasting time and higher temperatures involved in dark roasting create deeper flavors and bring out the natural sweetness of the beans. These flavor characteristics can complement the milk-based drinks commonly served in coffee shops, such as lattes and cappuccinos.
That being said, it's important to note that not all espresso beans are dark roasted. There are also medium roasts that are specifically tailored for espresso brewing. These medium roasts offer a balance between acidity and sweetness, providing a more nuanced flavor profile. Some baristas prefer using medium roasts to highlight the intricate flavors of the coffee beans while still maintaining the desired strength and body in the espresso.
It's worth mentioning that different coffee shops and baristas have their own preferences and may experiment with different roasts and blends to find the perfect combination for their espresso. Some even create their own unique blends by mixing different types of beans from various regions to achieve a specific flavor profile.
In the end, the choice of coffee beans for espresso ultimately comes down to personal preference and the desired flavor characteristics. It's always exciting to explore and experiment with different beans to discover new flavors and find the perfect cup of espresso that suits your taste buds.