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coffee, a tree, its seeds, and the beverage made from them. The coffee tree, a small evergreen of the genus Coffea, has smooth, ovate leaves and clusters of fragrant white flowers that mature into deep red fruits about 1-2 in. (1.27 cm) long. The fruit usually contains two seeds, the coffee beans. C. arabica yields the highest-quality beans and provides the bulk of the world's coffee, including c.80% of the coffee imported into the United States. The species is thought to be native to Ethiopia, where it was known before A.D. 1000.
Coffee's earliest human use may have been as a food; a ball of the crushed fruit molded with fat was a day's ration for certain African nomads. Later, wine was made from the fermented husks and pulps. Coffee was known in 15th-century Arabia; from there it spread to Egypt and Turkey, overcoming religious and political opposition to become popular among Arabs. At first proscribed by Italian churchmen as a heathen's drink, it was approved by Pope Clement VIII, and by the mid-17th cent. coffee had reached most of Europe. Introduced in North America c.1668, coffee became a favorite American beverage after the Boston Tea Party made tea unfashionable.
Coffee owes its popularity in part to the stimulative effect of its caffeine constituent. Caffeine, a bitter alkaloid, can also contribute to irritability, depression, diarrhea, insomnia, and other disorders. Decaffeinated coffees, developed in the early 1900s, account for c.18% of the U.S. market. For those without the time or the inclination to brew their own, there are instant or soluble coffees, introduced in 1867, which account for c.17% of U.S. coffee sales.
Coffee Plant Cultivation
Preparation and Types of Coffee
Coffee in Commerce
Varieties of C. arabica are important export crops in many countries, especially in South America and East Africa. Brazil is the leading producer. The only other species of commercial importance is C. robusta, a West African native also widely grown in Central Africa and Asia. Fluctuations in supply and demand have historically played havoc with world coffee markets and with the economies of individual growers and exporting countries. Efforts to stabilize the markets began with a 1940 agreement, administered by the Inter-American Coffee Board, allocating U.S. coffee imports from Latin America. A global agreement under the International Coffee Organization, a body of 70 coffee-producing and -consuming countries, expired in 1989.
In many cultures throughout its history, coffee has been served in coffeehouses, cafés, and other places of public refreshment, often as an aid and accompaniment to political or artistic activity, gambling, or gossip, or to solo rumination. Coffee's popularity in the United States peaked in 1962, when three-quarters of people over 18 years of age drank at least a cup a day. In 1992 only about half did, but 20 years later roughly 60% did. Beginning about 1990 U.S. consumers became increasingly interested in premium coffees and stronger, richer brews.
Classification of the Coffee Plant
See G. Dicum and N. Luttinger, The Coffee Book (1999); M. Pendergrast, Uncommon Grounds (1999).
a plant of the genus Coffea or its seeds (coffee beans), used to make a stimulating beverage of the same name and to obtain caffeine.
Coffee is an important commodity in international trade. The world output of coffee beans in 1971 reached 4.9 million tons, and more than 65 percent of it was produced in Latin America, primarily Brazil and Colombia but also Mexico, El Salvador, Costa Rica, and Guatemala. About 27 percent of the output was produced in Africa, especially the Ivory Coast, Ethiopia, Angola, and Uganda, and the rest was produced in Asia, mainly Indonesia, India, and the Philippines. The largest exporter of coffee is Brazil, accounting for more than one-third of world coffee exports. Colombia, the Ivory Coast, Uganda, Angola, Guatemala, and Mexico also contribute significantly to the world market. The main coffee consumers are the United States, which accounts for one third-of the world coffee imports, the Federal Republic of Germany, France, Italy, the Netherlands, and Sweden.
Coffee is sold as raw or roasted beans or as ground or instant coffee. Harvested beans are prepared for market by being cleaned of the pulp, fermented, and then dried at temperatures of 50°-60°C and polished. Caffeine is obtained from raw beans. The beverage coffee is prepared from beans roasted at 180°-200°C for 25–30 minutes and then ground. When the beans are roasted, their sugar is carmelized and substances are formed that give the beverage a brown color and pleasant taste and aroma.
There are many varieties of coffee, named after their place of origin or the port from which they are exported. Yemen, or mocha, coffee, produced in small quantities, is considered to be the best. Brazilian (Santos) and Colombian (Mams) coffees are also of high quality. The chemical composition of coffees may differ somewhat depending on the variety. On the average, coffee contains 13–14 percent nitrogen substances, 0.65–2.7 percent caffeine, 2–3 percent sugar, 12–15 percent fat, more than 20 percent cellulose, and 3–4 percent minerals.
Because of its significant caffeine content, coffee has a stimulating and tonic effect on the central nervous system. One teaspoon of ground coffee used to make a cup of the beverage contains a single therapeutic dose of caffeine (0.07–0.1 g). Coffee also stimulates stomach secretions. Natural coffee is not recommended for persons with a hyperactive nervous system or for those suffering from heart palpitations, ulcers, hypertension, or insomnia.
The term “coffee” is also applied to commercial coffee substitutes made from various vegetable sources such as roasted barley or acorns, which do not contain caffeine. Many coffee substitutes have natural coffee added in small quantities.
What does it mean when you dream about coffee?
For regular coffee drinkers, this could simply be a reflection of one’s everyday life experience in one’s dreams. A social ritual; friendship. Alternatively, it might mean something we thirst for. A common idiom is to “wake up and smell the coffee,” meaning to give something more attention.