Studies have shown that tea extract content and the leaching rate and total tea tenderness, processing methods, modeling, brewing time and temperature. Water extracts of content with the extraction time, an increasing trend; and extraction temperature relationship for some tea samples with the extraction temperature increased, while the degree of re-rolled, cell damage rate is high temperature of the tea-like brew increased from 80 C to 90 C, the content of water extracts increased with extraction temperature increased, rising from 90 C to 100 C. In the second place, preserving dragon well  tea with carbon is adopted.  Little difference between the two; brewing at the same time, usually after its rolled tea content than the water extracts of tea without flooding rolled out of the content is higher, and rolled the more severe the higher the content of water extracts; tea extract content and tenderness of the relationship between raw materials from a single bud to a bud and two leaves water extract content increased, maturity more than one bud clover, water extracts decreased; sensory evaluation of tea when you feel the most appropriate concentration. . 45g/100m1 so. The sizes of the charcoal bags and thedragon well  tea bags can be adjusted according to the volume of the containers.    1996, 2001, Lake Township, Lake District National were named "Hometown of Chinese Longjing tea." West Lake Longjing tea has won national, ministerial, provincial of the Gold, Silver, West Lake Longjing tea is a unique gift designated national long-term tea, Hangzhou, and even the Chinese nation is a huge intangible assets. The last way is to have the longjing tea refrigerated.      West Lake Longjing tea treasures     West Lake Longjing ancient Longjing tea, is a bright pearl of West Lake, the state tea treasures. Longjing tea began in the Song, Wen Yuan and Yang in the Ming and Qing Sheng.  At first, we should dry the dragon well  tealeaves, with 3% to 5% of the water content in them and that mustn’t over 6%.      The gave birth to beautiful lakes and mountains in West among the unique natural environment in the growth, the essence of condensate West Lake, gather the wisdom of Chinese tea, has a long history and rich culture, unique species, the fine processing technology and quality of charm, taste supreme value, known as "the color green, fragrant, sweet, shaped the United States the" four no known, worthy of glory for the Chinese tea, attracted worldwide attention. Then, put the longjing tea into aluminized composite bags and seal the bags.     "For the West than the West, never Jiaming like beauty," thousands of years, how many men of letters, whom Romantic chant, Longjing tea leaves to the many fabulous beautiful legend, poetry chapter. After the founding of New China, the older generation of proletarian revolutionaries of the party and the state of Mao Zedong, Liu Shaoqi, Zhou Enlai, Deng Xiaoping, Zhu De, Chen Yi and Li Peng, Zhu Rongji, Li,. Next, exhaust the air in the Dragon Well tea bags and infuse some nitrogen into the bags.