Chocolate presentation(非常详尽英文课堂演讲).ppt

Chocolate_presentation(非常详尽英文课堂演讲)Chocolate
By Minty＆Sharon
1
Description of Chocolate
Chocolate is made from cocoa beans found on the cacao tree.
The cacao tree was first discovered in the South American rainforest.
The three main ingredients in chocolate are chocolate liquor, cocoa powder, and cocoa butter.
Different kinds of chocolate use varying amounts of these 3 ingredients.
Picture of the Cacao Tree
2
History of Chocolate
Dates back to about 1,500 years ago.
First found in Mayan and Aztec Civilizations.
Mayans used cacao beans to create a cold, unsweetened, spicy chocolate beverage. This was the first form of chocolate.
Aztecs came across cacao beans through trade. They named the spicy drink xocolatl (bitter water).
Cacao beans played important roles in both Mayan and Aztec Civilizations.
3
The chocolate drink was first brought to Europe by Spanish conquistador, Hernan Cortes.
The drink was sweetened to match European tastes.
The drink spread from Spanish courts to other European courts.
The drink was also prescribed to people for depression and used in love and death potions.
In the late 18th century French and Dutch processors experimented with chocolate liquid.
This lead to the production of chocolate powder, which then led to the production of the first solid chocolate.
The first solid chocolate was believed to have been sold in England in the mid-1800s.
4
Chocolate as we know it today was largely made possible by three events ——
In 1828, Dutch chemist Johannes Van Houten, invented a method of
extracting the fat or "cocoa butter" from ground cocoa beans. The resulting 'cocoa' powder was much less bitter tasting and, when combined
with sugar or honey, made a drink much more palatable to our taste.
This process known as the Van Houten process made it possible for Fry & Sons of Bristol, England to manufacture and sell the first solid
chocolate bar in 1847.
In 1875 a Swiss manufacturer, Daniel Peters also used the Van Houten process to successfully