Dark Roast

A dark roast is defined by its intense heat exposure, which pushes the coffee bean well past the initial stages of caramelization. During this process, the bean's internal structure expands significantly, and the natural sugars are heavily caramelized, often bordering on carbonization. The result is a bean that is dark brown to nearly black in color, with a distinct, oily sheen on the surface caused by the migration of internal lipids.

When considering what is a dark roast, it is important to understand that the roasting process has largely eclipsed the delicate, nuanced flavors of the coffee's origin. Instead of the bright, fruity, or floral notes found in lighter roasts, a dark roast coffee is characterized by bold, heavy, and often smoky or spicy flavors. The acidity is almost entirely neutralized, leaving behind a pronounced bitterness that many drinkers associate with a 'strong' cup of coffee.

Coffee dark roast profiles are often used for espresso blends or for coffees intended to be consumed with milk and sugar. The intensity of the roast allows the coffee to maintain its presence even when diluted. However, because the roasting process is so aggressive, it can also mask defects in lower-quality green coffee, which is why dark roasts were historically common in commercial-grade coffee production.

In practice, a dark roast is a stylistic choice. If you enjoy a cup with a heavy, syrupy mouthfeel and a lingering, bittersweet finish, a dark roast may be your preference. It is essential to note that while dark roasts are often perceived as having more caffeine, the roasting process actually burns off a negligible amount of caffeine by weight; however, because the beans are less dense, you may get more caffeine per scoop if you measure by volume rather than weight.