Chocolate is a popular sweet treat derived from cocoa beans, which grow in the fruit of cacao trees near the equator, in Central and South America and Africa. On average, we eat about three million tonnes of these beans in the form of chocolate. To make the commercial chocolate we enjoy today, these beans are shelled before being fermented (to develop flavour) and dried out (to develop colour), then roasted. The roasting process produces cocoa nibs, which are then ground down into cocoa mass, or chocolate liquor. Finally, this aromatic chocolate liquor is combined with other ingredients, including sugar, milk, and lecithin. But did you know that some types of chocolate also contain caffeine?