Coffee is a flowering shrub that is native to the tropical region of Africa. There are a few natural varieties of this shrub and a myriad of man-made hybrids.
Of the natural varieties, the two most common are Arabica and Robusta. According to the Specialty Coffee Association, the Arabica species
Robusta coffee often gets a bad reputation and is described as being bitter, or a cheap filler coffee used by mass market producers that sell preground coffee in cans. However, Robusta has twice the caffeine of Arabica and more anti-oxidants. On its own, a quality Robusta can provide a pleasant flavor profile, but most commonly it is used in blends to round out the flavor of an Arabica
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