Is a seed of the coffee plant and the source for the coffee beverage. Even though the coffee seeds are not beans, they are referred to as "beans" because of their resemblance to true beans. Like Brazil nuts (a seed) and white rice, coffee beans consist mostly of endosperm.

It is the pit inside the coffee berry, a sweet, red stone fruit similar in appearance to a grape tomato—however, it was said by some to resemble a cherry, thus the colloquial term "coffee cherry". They most commonly contain two stones with their flat sides together. A small percentage of fruits contain a single seed, instead of the usual two. This is called a "peaberry". The peaberry occurs only between 10 and 15% of the time, and the belief that their contained seeds have more flavour than normal coffee beans is fairly common, yet scientifically unproven.

The two most economically important varieties of coffee plant are the Arabica and the Robusta; ~60% of the coffee produced worldwide is Arabica and ~40% is Robusta. The Arabica beans consist of 0.8–1.4% caffeine and the Robusta beans consist of 1.7–4% caffeine. 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.

Varieties: Arabica and Robusta.

Origin: Colombia and Honduras.