Cocoa: A small perennial tropical tree of Sterculiaceae, native to the tropical rain forest in the upper reaches of the Amazon River in South America, whose fruit is one of the three major beverages (coffee, tea and cocoa) in the world. The old stem blooms, and the flowers are small and the fruits are big. There are dozens of seeds in the fruit, which are cocoa beans and contain cocoa butter. They are solid at room temperature, and the critical melting temperature is 37 degrees, while the temperature of human mouth is 37.5 degrees. Therefore, they "only melt in the mouth, not in the hands." It is the main raw material for making chocolate. Rich in protein, it has nourishing and exciting effects; The heat energy is very large, which can keep vigorous energy for a long time. It is the main raw material for making chocolate, and can also be used for drinking or medicine. Coffee: Coffee belongs to Rubiaceae. Perennial evergreen shrubs or small trees. One of the three major beverages in the world (coffee, tea and cocoa). China is made in Hainan Island and Yunnan. Coffee beans with bright red fruits are roasted and ground into coffee powder, which is a good drink. It contains a lot of caffeine, protein and so on. It tastes fragrant, excites nerves, eliminates fatigue, can be used as anesthetic, stimulant, diuretic and cardiotonic, and can also help digestion and promote metabolism. 4,000 years ago, herders in Kafa, Ethiopia, Africa found that sheep became restless and excited after eating a small tropical tree. After rushing back to the sheepfold, the sheep danced all night, so they boldly tried and found that this plant can refresh themselves and even dance. Now the name of coffee is taken from the approximate sound of "coffee method" Modern medicine believes that coffee can promote human metabolism, prolong the aging process, excite nerves and drive away fatigue. Coffee is divided into large, medium and small seeds, and the small seeds have low caffeine content but strong flavor; Medium coffee and large coffee have high caffeine content, but poor flavor. Usually commercial coffee is made from the above, usually three or seven points. The national flowers and trees of Yemen, and the national trees of Honduras and El Salvador. Tea is the general name of tea tree or tea tree bud and leaf processed products. Tea is a perennial evergreen woody plant of Theaceae. China was the first country to discover and utilize tea. Tea has many ancient names. Such as naphthalene, naphthalene, bitter naphthalene, tea, etc. In ancient times, some refer to tea trees and some refer to different finished teas. By the beginning of the Tang Dynasty (8th century AD), the word "naphthalene" was gradually simplified to the word "tea", which unified the name of tea. At present, the pronunciation of the word "tea" in the world is mostly derived from the phonological changes of "tea", "tea" and "naphthalene". Since ancient times, there has been a legend in China that "Shennong tasted a hundred herbs and encountered seventy-two poisons every day, and solved it with tea". Although there is nothing to test, it can be said that it is too early to know how to use tea. In the Tang Dynasty, Lu Yu wrote the world's first monograph on tea, The Classic of Tea, saying that "the tea maker is Jia from the south, one foot, two feet or even dozens of feet, and two people from Bashan and Xia Chuan embraced him", which not only described the shape of tea trees, but also pointed out that tea was produced in the south of China. He also said: "Tea is a drink, which originated from Shennong's family and was heard in Duke Zhou of Lu ... the custom of immersion flourished in the Zhou Dynasty." Tea, as a medicine, was first recorded in Shennong's Classic of Materia Medica: Shennong tasted a hundred herbs every day and was poisoned by 72 drugs, so tea was used to remove it. Li Shizhen's Compendium of Materia Medica records: "Tea tastes bitter and cold, which can best reduce fire, and can also relieve the poison of wine and food, making people refreshed and not sleepy." "Tea Classic" records: "Tea is also an elixir of health and a wonderful way to prolong life. In the Scout Record of the Eastern Han Dynasty: "There are melons and reeds in the south, also like tea. They are bitter and bitter. It can be used as bread crumb tea or stay up all night, but people who cook salt can drink it. "Since Zhou Wuwang used tea instead of wine, tea has been used as a drink by the upper class. In Feng's Wen Jian Ji: "There was a monk on Mount Tai in Kaiyuan who preached Zen, and everyone cooked tea to drive away sleep, which made everyone follow suit. "In the Han Dynasty, tea has become a commodity. The earliest tea market in China was recorded in Wang Bao's "Yue Yue" in the Han Dynasty: "Everything is available for making tea" and "Wuyang buys tea". By the Tang and Song Dynasties, drinking tea had spread to ordinary people. Wang Anshi of the Song Dynasty said: The use of tea is equal to rice and salt, and there must be no day. Tea was originally a drink, which was made by picking fresh tea leaves and boiling them. In the Northern and Southern Dynasties, fresh leaves were processed into tea cakes. Later, steamed green tea was invented in the Tang Dynasty. The Song Dynasty created steamed green tea; In the Ming Dynasty, fried green tea, yellow tea, black tea, black tea and scented tea were created. White tea and oolong tea were created in the Qing Dynasty. Tea spread from Yunnan, Guizhou and Sichuan Plateau in China to the whole country. In ancient times, there was a saying that "Sichuan tea is the most holy and Mengding is the first". After Qin unified China, tea spread along the Yangtze River to half of China. At present, China has 17 provinces, and more than 900 counties produce tea. The coast of China covers 50 countries and regions around the world. As a commodity, tea was introduced to Europe in 16 10, first to the Netherlands and Portugal, and then to Britain in 1638. 1664 imported to Russia. It was introduced to the United States in17th century and to new york in 1674. William Ux of the United States wrote the Book of Tea: "The habit of replacing wine with tea is equally valued in both the East and the West. After several centuries, Europeans began to learn to drink tea. "With the introduction of tea, it spread all over the world, of course, after the Tang and Song Dynasties. It was introduced to Japan in 729 AD and Korea in 828 AD. 16 18 to Russia; 1780 to India; Indonesia 1828, Sri Lanka1834; 19 14 Malaysia spread to these countries as a commodity much earlier.

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