Robusta vs. Arabica

There are two basic categories into which all species of coffee trees can be sorted. Although there are several varieties of each—each variety having its own character—this division into two large categories is useful for understanding the difference between a gourmet cup of coffee and an ordinary cup. High quality blends consist of 100% Arabica beans. Lower quality, cheaper blends may have some proportion of Robusta beans, or they may consist entirely of Robusta. Arabica beans produce a superior taste in the cup, being more flavorful and complex than their Robusta counterparts. Robusta beans tend to produce a more bitter brew, with a musty flavor and less body. This distinction being made, you can see why high quality coffees should consist of 100% Arabica beans.