Chocolate

Chocolate is a versatile food made from the roasted and ground seeds of the cacao tree.

These seeds are known as cocoa beans. Chocolate can exist as a liquid, a solid, or a thick paste. It is used to flavor many different foods or eaten on its own. People enjoy chocolate in many forms, such as cakes, cookies, and ice cream. It is also a common ingredient in candies and various beverages.

Because it is so versatile, it is a popular global treat.

The production process begins with the cacao tree, scientifically named *Theobroma cacao*. This name translates to "food of the gods."

The tree is a small evergreen that grows near the equator. It requires warm temperatures between 21 and 32 degrees Celsius. These trees also need about 2000 mm of rainfall every year. The fruit of the tree is an ovoid cocoa pod. These pods weigh about 500 grams when they are ripe. Workers harvest them by cutting them with a machete or knocking them down with a stick.

Once harvested, the beans and their surrounding pulp undergo fermentation.

Micro-organisms like yeasts and bacteria act on the seeds for up to seven days. This step is vital because it creates flavor precursors. After fermentation, the beans are dried, often in the sun for five to seven days. This prevents mold from growing. The dried beans are then cleaned, roasted, and the shells are removed. This reveals the inner part of the bean called the nib.

Next, the nibs are ground to create chocolate liquor. This is unadulterated chocolate in a rough, liquid form. This liquor can be processed to separate it into two main components. These components are cocoa solids and cocoa butter. Cocoa butter is a polymorphic fat that defines the texture and melting point of chocolate. Makers use a machine called a conche to refine the mixture.

A conche uses metal beads to grind particles down to about 20 micrometers. This process makes the chocolate feel smooth on the tongue instead of gritty. Finally, the chocolate is tempered to create a glossy finish and a good snap.

There are several distinct types of chocolate based on their ingredients. Dark chocolate is similar to pure cocoa liquor but usually has more cocoa butter. It is often defined by its specific cocoa percentage. Milk chocolate is made by replacing some cocoa solids with milk solids. White chocolate is unique because it contains cocoa butter and milk solids but no cocoa solids. This gives it an ivory color.

Other specialized varieties include ruby chocolate and gianduja, which contains nut paste like hazelnut.

Chocolate has a history spanning thousands of years. Evidence shows cacao was used in South America at least 5,300 years ago.

In Mesoamerica, civilizations like the Mayans and Aztecs valued cacao deeply. They used cocoa beans as currency and as offerings to gods. They primarily consumed chocolate as a bitter, frothy drink. In the 16th century, chocolate was introduced to Europe. For a long time, it remained a luxury drink for the social elite. Technological changes in the 19th century allowed chocolate to become a solid food for the masses.

In the modern era, chocolate production has shifted geographically. Today, West African countries produce most of the world's cocoa. Ivory Coast and Ghana alone contribute about 60% of the global supply.

However, this industry faces serious challenges. There has been significant media attention regarding child labor and trafficking in these regions. Understanding these production realities is part of the modern history of chocolate. The industry continues to evolve through new techniques like the bean-to-bar model.