Why Arabica? Arabica vs. Robusta
Coffee can be sorted into two basic categories: Arabica and Robusta. High quality coffee blends consist of 100% Arabica beans. Lower quality, cheaper blends may have some proportion of Robusta beans or 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 like Prime Luwak Coffee consist of 100% Arabica beans.
Arabica beans demand a higher price because they grow more slowly than Robusta and can be grown only in certain regions requiring a very precise temperature range and annual rainfall. They also tend to do best, and produce the best bean, at higher altitudes. In fact, high altitude beans carry an extra premium because they are thought to contain more of the substances that make coffee so flavorful than beans grown at lower altitudes. Varieties of Arabica beans are grown all over the world and the different flavor characteristics produced by each growing region are distinctive. Only in Sumatra can we find Arabica coffee that has undergone a natural frementation process to produce Luwak coffee.

