Robusta Coffee (Wikipedia)

The big question here--as far as my novel is concerned--is:
will it be Arabica or Robusta coffee?

http://en.wikipedia.org/wiki/Coffea_canephora

"Coffea canephora (Robusta Coffee; syn. Coffea robusta) is a species of coffee which has its origins in central and western subsaharan Africa. It is grown mostly in Africa and Brazil, where it is often called Conillon. It is also grown in Southeast Asia where French colonists introduced it in the late 19th century. In recent years Vietnam, which only produces robusta, has surpassed Brazil, India, and Indonesia to become the world's single largest exporter. Approximately one third of the coffee produced in the world is robusta.

Canephora is easier to care for than the other major species of coffee, Coffea arabica, and, because of this, is cheaper to produce. Since arabica beans are often considered superior, robusta is usually limited to lower grade coffee blends as a filler. It is however often included in instant coffee, and in espresso blends to promote the formation of "crema". Robusta has about twice as much caffeine as arabica.

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