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Chocolate bar

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A chocolate bar is a popular confectionery made primarily from cocoa.

These treats can be simple or complex. Some bars consist of solid chocolate, while others include layers of nuts, fruit, caramel, nougat, or wafers. In some places, like Canada, the term "chocolate bar" is reserved strictly for solid chocolate. In other regions, the term "candy bar" is used for bars containing extra ingredients. A flat, easily broken bar is sometimes called a tablet.

Manufacturing these bars requires several precise technical steps. The process begins by grinding and refining raw cocoa ingredients. One essential method is conching, which was discovered by Rodolphe Lindt in 1879. Conching involves evenly blending cocoa butter with sugar and cocoa solids. This step ensures the chocolate has a perfectly smooth texture. Another vital stage is tempering, which became a standard process around the 1920s. Tempering allows the chocolate to become hard at room temperature and gives it a shiny appearance.

Uncle Sam, the Connaisseur. Peter's Chocolate
Uncle Sam, the Connaisseur. Peter's Chocolate

There are three main types of chocolate: dark, milk, and white. These varieties differ based on their ingredients and how they are processed. Since the beginning of the industry, manufacturers have added non-cocoa ingredients to reduce production costs. In the late 19th century, the chocolate bar evolved from various sweets like bonbons and chocolate-covered nuts. These were originally sold in small pieces by weight. Packaging them into bars made them more convenient for both buyers and sellers. However, buying chocolate in bulk remained a cheaper option for many consumers.

The history of cocoa stretches back to pre-Columbian America. The Aztecs used finely ground cocoa, often in the form of small balls or sticks.

Nobleman offering cocoa paste
Nobleman offering cocoa paste

They used stone metates to grind the beans. While cocoa was traditionally used for drinks, solid chocolate was also consumed. Cocoa reached Europe in the early 16th century. Because transport was slow and difficult, it remained a very expensive luxury. By the end of the 18th century, wealthy Europeans began consuming more solid chocolate. A letter from the Marquis de Sade in 1779 even mentions wanting cookies that tasted like a chocolate bar.

Chocolate bar from the times of King Stanisław August Poniatowski
Chocolate bar from the times of King Stanisław August Poniatowski

Industrialization in the 19th century changed everything for chocolate production. In 1795, Joseph Storrs Fry patented a method using a Watt steam engine to grind beans. In 1811, Poincelet invented the melanger, a machine used to refine chocolate. A major breakthrough occurred in 1828 when Casparus van Houten patented a hydraulic cocoa press. This machine could press the fat, or cocoa butter, from roasted cocoa beans. The center of the bean, known as the nib, contains about 54 percent cocoa butter. Van Houten's press reduced this fat content by nearly half.

Vue intérieure de la fabrique de chocolats de la compagnie coloniale, à Paris
Vue intérieure de la fabrique de chocolats de la compagnie coloniale, à Paris

This ability to isolate cocoa butter allowed for new types of confectionery. Extra cocoa butter could be mixed with cocoa liquor and sugar to increase fluidity. This made the chocolate easier to mold into complex shapes. In 1836, chocolate bars became popular in France for being nutritious and portable.

The Menier factory in France became very large, producing 2,500 tonnes by the 1860s. In 1875, Daniel Peter created milk chocolate by working with Henri Nestlé, who specialized in dehydrated milk. This innovation led to the successful Gala Peter brand in 1887.

In the United States, chocolate production grew through both immigration and industrial vision. Milton S. Hershey saw a German machine at the 1893 Chicago World's Fair. He used this to produce the first American-made milk chocolate bar. During World War I, the U.S. Army even used 40-pound blocks of chocolate for troops.

Fry's Chocolate and Cocoa
Fry's Chocolate and Cocoa

When soldiers returned home, their demand helped make chocolate bars a global staple. Today, the industry includes many famous companies like Cadbury, which produced the popular Dairy Milk bar in 1905. From holiday Easter eggs to almond-filled bars, chocolate remains a deeply connected part of global culture.

Mars-Almond-split
Mars-Almond-split
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🖼️ Images & Media (10)
File:Nobleman offering cocoa paste.jpg
Nobleman offering cocoa paste.jpg
File:Mexican Chocolate.jpg
Mexican Chocolate.jpg
File:Vue intérieure de la fabrique de chocolats de la compagnie coloniale, à Paris.jpg
Vue intérieure de la fabrique de...
File:Chocolat-Menier. Les contrefaçons nombreuses du Chocolat-Menier nous engagent à présenter ci-contre un dessin des deux faces d'une tablette, affiche, non identifié.jpg
Chocolat-Menier. Les contrefaçons...
File:Menier and Fry's (1864).png
Menier and Fry's (1864).png
File:Fry's Chocolate and Cocoa.jpg
Fry's Chocolate and Cocoa.jpg
File:Uncle Sam, the Connaisseur. Peter's Chocolate.jpg
Uncle Sam, the Connaisseur. Peter's Chocolate.jpg
File:Mars-Almond-split.jpg
Mars-Almond-split.jpg
File:Green and Black's dark chocolate bar 1.jpg
Green and Black's dark chocolate bar 1.jpg
File:Chocolate bar from the times of King Stanisław August Poniatowski.jpg
Chocolate bar from the times of King...
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