Solid chocolate is a nineteenth-century invention
For Europeans, chocolate was long an elite drink. In 1828 Coenraad van Houten patented a press that squeezed cocoa butter from liquor, enabling cocoa powder and modern bars. Conching and milk chocolate followed—so the candy bar is younger than the steam locomotive.
Chocolate starts as roasted, ground cacao seeds (Theobroma cacao)—"food of the gods" in the scientific name. Fermented, dried beans become nibs and chocolate liquor, then cocoa butter, powder, dark, milk, or white bars. Ecuadorian use of cacao as food stretches at least 5,300 years; Mayo-Chinchipe domestication reaches about 5300 BP. Mesoamericans drank bitter, foamed cacao with chili or vanilla, paid taxes in beans, and treated the crop as divine. Cortés saw it at Moctezuma II’s court in 1520; official European bean shipments are recorded by 1585. The English word appears in 1604, Spanish in 1579; a neat chocolatl etymology is disputed.
West Africa—especially Ivory Coast and Ghana—now grows about 60% of cocoa. Trees need roughly 2000 mm of rain yearly and 21–32°C within about twenty degrees of the equator. Pods ferment up to seven days as yeasts and bacteria build flavor precursors, then sun-dry five to seven days. Van Houten’s press, melangers, and conching let an 1890 worker make about fifty times more chocolate than before industrialization. Tempering and lecithin later improved snap and texture; white and couverture styles arrived in the twentieth century. Early 1900s Cadbury investigators described Portuguese African plantation labor as de facto slavery—a controversy that still echoes.
Holiday molds and hot cocoa keep ceremonial roles alive, but most chocolate today is a solid snack. Criollo, Forastero, and Trinitario labels are traditional; genetics now sketches about eleven clusters instead. From understory Amazon trees to factory tempering machines, the path from ritual drink to pocket bar runs through one hydraulic patent.
Source: Chocolate
