Rows of potted cocoa plants from around the world. Before a cocoa variety from one country can be planted in another, it first makes a pit stop here, at a quarantine center in rural England. Courtesy of Dr. Andrew J. Daymond hide caption

toggle caption Courtesy of Dr. Andrew J. Daymond

Farmer Issiaka Ouedraogo lays cocoa beans out to dry on reed mats, on a farm outside the village of Fangolo, Ivory Coast. Rebecca Blackwell/AP hide caption

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Vincent Mourou, co-founder of Vietnam's first artisan chocolate maker Marou, inspects cacao beans at a farmer's garden in Go Cong Tay district. Hoang Dinh Nam/AFP/Getty Images hide caption

toggle caption Hoang Dinh Nam/AFP/Getty Images