Coffea arabica, commonly known as Arabica coffee, is a flowering evergreen shrub or small tree in the family Rubiaceae cultivated for its seeds, which are processed into one of the world’s most widely consumed beverages. The genus name Coffea derives from the Arabic qahwa, transmitted through Ottoman Turkish kahve into European languages as “coffee,” while the species epithet arabica reflects its historical association with Arabia, particularly Yemen, where it was first widely cultivated and traded. Although long linked to the Arabian Peninsula in commerce and culture, Coffea arabica is native to the highland forests of southwestern Ethiopia and parts of South Sudan, where it grows as an understory plant in montane environments.

Arabica coffee is characterized by its relatively delicate growth habit, preference for cooler tropical highland climates, and seeds containing lower caffeine content than its close relative Coffea canephora (Robusta). Historically, Arabica was the first coffee species domesticated and disseminated through Islamic trade networks from Ethiopia to Yemen and subsequently across the Red Sea, the Ottoman Empire, and Europe. From there it spread to tropical regions worldwide, including Latin America, Southeast Asia, and East Africa, becoming the dominant species in global specialty coffee production. The seeds, commonly called “coffee beans,” are removed from the fruit (coffee cherries), fermented or washed, dried, roasted, and ground to produce brewed coffee. Arabica is prized for its complex aromatic profile, often described as floral, fruity, sweet, or chocolate-like, depending on cultivar and terroir. Beyond beverage production, coffee has played significant economic and cultural roles in societies across the tropics and has shaped global trade, colonial agriculture, and social rituals.

Coffea arabica yields seeds rich in bioactive compounds including caffeine, chlorogenic acids (such as 5-caffeoylquinic acid), trigonelline, cafestol, and kahweol. These compounds contribute stimulant, antioxidant, and metabolic effects in humans. Caffeine acts as an adenosine receptor antagonist, promoting wakefulness and increased alertness, while chlorogenic acids influence glucose metabolism and oxidative stress. The roasting process transforms many of these constituents, generating additional aroma compounds through Maillard reactions and caramelization, which define the sensory character of brewed Arabica coffee.