Region of origin | Horn of Africa[1] and South Arabia[2] |
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A coffee bean is a seed from the Coffea plant and the source for coffee. It is the pit inside the red or purple fruit. This fruit is often referred to as a coffee cherry, and like the cherry, it is a fruit with a pit. Even though the coffee beans are not technically beans, they are referred to as such because of their resemblance to true beans. The fruits most commonly contain two stones with their flat sides together. A small percentage of cherries contain a single seed, called a "peaberry". Peaberries make up only around 10% to 15% of all coffee beans. It is a fairly common belief that they have more flavour than normal coffee beans.[3] Like Brazil nuts (a seed) and white rice, coffee beans consist mostly of endosperm.[4]
The two most economically important varieties of coffee plants are the Arabica and the Robusta; approximately 60% of the coffee produced worldwide is Arabica and ~40% is Robusta.[5] Arabica beans consist of 0.8–1.4% caffeine and Robusta beans consist of 1.7–4.0% caffeine.[6] As coffee is one of the world's most widely consumed beverages, coffee beans are a major cash crop and an important export product, accounting for over 50% of some developing nations' foreign exchange earnings.[7] In 2017, 70% of total coffee production was exported, worth US$19.9 billion.[8] The global coffee industry is massive and valued at $495.50 billion as of 2023, the biggest producer of coffee and coffee beans is Brazil.[9] Other main exporters of coffee beans are Colombia, Vietnam and Ethiopia.