Some coffees are blends of different types of beans, roasted to different levels and combined to create a unique flavor. Blends are popular among coffee drinkers because they offer a variety of flavors in one cup. Blends can be made from any combination of beans, including Arabica, Robusta, and Liberica. The roasting process also plays an important role in the flavor of the blend. Roasting beans to different levels can bring out different flavors and aromas, creating a unique taste.