Cocoa | Description, History, Processing, & Products | Britannica

History of use

Cacao residues on pottery in Ecuador suggest that the plant was consumed by humans as early as 5,000 years ago. The tree was likely domesticated in the upper Amazon region and then spread northward. It was widely cultivated more than 3,000 years ago by the Maya, Toltec, and Aztec peoples, who prepared a beverage from the bean (sometimes using it as a ceremonial drink) and also used the bean as a currency.

Christopher Columbus took cocoa beans to Spain after his fourth voyage in 1502, and the Spanish conquistadores, arriving in Mexico in 1519, were introduced to a chocolate beverage by the Aztec. The Aztec beverage was made from sun-dried shelled beans, probably fermented in their pods. The broken kernels, or nibs, were roasted in earthen pots and then ground to a paste in a concave stone, called a metate, over a small fire. Vanilla and various spices and herbs were added, and corn (maize) was sometimes used to produce milder flavour. The paste, formed into small cakes, was cooled and hardened on shiny leaves placed under a tree. The cakes were broken up, mixed with hot water, and beaten to foamy consistency with a small wooden beater, a molinet, producing the beverage called xocoatl (from Nahuatl words meaning “bitter water”).

Too bitter for European taste, the mixture was sweetened with sugar when introduced to the Spanish court. Although Spain guarded the secret of its xocoatl beverage for almost 100 years, it reached Italy in 1606 and became popular in France with the marriage of the Spanish princess Maria Theresa to Louis XIV in 1660. In 1657 a Frenchman opened a London shop, selling solid chocolate to be made into the beverage, and chocolate houses, selling the hot beverage, soon appeared throughout Europe. By 1765 chocolate manufacture had begun in the American colonies at Dorchester, in Massachusetts, using cocoa beans from the West Indies.

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In 1828 C.J. van Houten of the Netherlands patented a process for obtaining “chocolate powder” by pressing much of the cocoa butter from ground and roasted cocoa beans. In 1847 the English firm of Fry and Sons combined cocoa butter, a by-product of the pressing, with chocolate liquor and sugar to produce eating chocolate, and in 1876 Daniel Peter of Switzerland added dried milk to make milk chocolate. The proliferation of flavoured, solid, and coated chocolate foods rapidly followed.

Starting in the Americas in an area stretching from southern Mexico to the northern countries of South America, commercial cacao cultivation spread around the world to areas within 20° of the Equator where rainfall, temperatures, and soil conditions were suitable for its growth.

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