UCT sources coffee from Africa and South America. Coffee is a brewed beverage made from the roasted seeds, Once the berries of the coffee plant are harvested, the flesh is removed and discarded, leaving only the seed. Prior to roasting the beans have a grey-green color and are referred to as green coffee. Because the beans are very shelf stable at this point, they are sold and shipped green.
Arabica coffee is considered superior to Robusta because of its delicate flavor and low acidity. This variety is grown at higher altitudes and can be more difficult and costly to grow. These labor intensive, low yield plants produce a high demand bean that sells for a higher price.
Robusta coffee tends to have a more acidic and harsh flavor than Arabica as well as higher levels of caffeine. Robusta can be grown at lower altitudes, in hotter climates, and with less moisture. Because Robusta has fewer growing restrictions and has a generally less desirable flavor, it is usually sold for a lower price than Arabica beans. Most mass-market commercial beans are of the Robusta variety.