Common knowledge about tea (1)
Tea is a superior beverage that is beneficial to human health, and about more than half of the world's population loves to drink tea. The reason why tea is regarded as a healthy beverage is that it contains a large number of substances beneficial to human beings, such as theophylline, tea tannin, aromatic oils, and vitamin C, etc. Therefore, tea can refresh the mind, improve eyesight, remove fire, eliminate food, relieve summer heat, laxative and diuretic. Especially in today's world, tea has other beverages are not as good as the three major functions, namely, cancer prevention, cardiovascular disease prevention and radiation hazards. Especially green tea contains more tea polyphenols, absorbed by the body will combine with carcinogens to make them decompose, and reduce carcinogenic activity, thereby inhibiting the growth of cancer cells. Chemical analysis and clinical trials show that green tea contains active ingredients that can slow down the reproduction of leukemia virus and human immunodeficiency virus (AIDS). Experts believe that green tea has been identified as the most effective natural antidote to cancer, and the ellagic acid in green tea can prevent cancer cells from sticking to healthy cells, so it can reduce the spread of cancer. Therefore, drinking tea has become more and more popular.
First, the classification of tea
According to the different methods of tea processing is divided into six categories: black tea: such as Qi Hong, Dian Hong, etc.. Green tea: Xihu Longjing, Huangshan Maofeng and so on. White Tea: White Peony, Gong Mei, etc. Yellow Tea: Junshan Silver Needle, Huangshan Maofeng, etc. Yellow tea: Junshan silver needle, Huoshan yellow tea, etc. Black tea: Liubao tea, Por brick tea, etc. Green tea: (also called oolong tea) Tieguanyin, Shuixian, etc.
By export tea is divided into six categories: black tea, green tea, oolong tea, flower tea, white tea, pressed tea.
Second, the tea on the choice of water
Water is divided into natural water and artificially treated water. Natural water includes spring water, river water, well water and water from the sky, and artificially treated water has tap water. Distilled water, non-ionized water. The different dissolved substances contained in various kinds of water have a great impact on the quality of tea soup. Spring water, especially from the mountain slowly out of the spring water for tea is the best, followed by river water, again well water, rainwater can also make tea. Generally, fall rain is the best. Plum rain followed by thunderstorms are the worst.
Third, bubble tea on the water temperature requirements
The general temperature of the tea water to reach the degree of boiling bubbles, the water temperature standard is about 90 ℃.
Fourth, the preservation of tea
Tea bought back if not properly preserved, largely affecting the quality of the tea itself. General tea moisture content of 5% below the more resistant to preservation, dry tea preserved in an airtight vessel can be a long time to maintain the color and flavor of tea. If the tea leaves are placed in the direct sunlight, the dry tea will easily change color and affect the taste. The more high-grade green tea, flower tea is more sensitive to light. Temperature is also very important for the preservation of tea, tea is easy to save at low temperature, generally 0-5 ℃ is more appropriate. Room temperature tea is not stable and easy to change.
Fifth, different seasons should drink different teas
Spring is more dry due to the drink of green tea, which can quench thirst and can clear heat and detoxification. Summer weather is hot, this time to drink green tea can also drink iced tea, both green tea brewed to add the right amount of ice, after drinking fresh and clean, and then go to the summer heat. Autumn high and refreshing, but the morning and evening cool, this can drink oolong tea can also drink flower tea. Winter is cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold, cold. What tea to drink in different seasons, should also be based on personal habits and physical condition.
Six, tea and health
Drinking tea can excite the nerve center, eliminate fatigue, less sleep and benefit from thinking. Drinking tea can supplement a variety of vitamins, improve the quality of human health. Drinking tea can promote food absorption and metabolism, can improve the body's mineral levels, can regulate the body's sugar metabolism treatment of diabetes. Drinking tea can diuretic, enhance the excretory function of the kidneys. Drinking tea can prevent aging and prevent coronary heart disease. Drinking tea can improve eyesight, anti-inflammatory, detoxification, resistance to radiation damage and anti-cancer effects.
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2. What are the tips for preserving tea
Place the dry, closed ceramic altar in a cool place, wrap the tea with thin kraft paper, tie it tightly, and arrange it in layers in the altar, and then put the lime bag in the middle of the tea bag, and then finally seal the mouth of the altar.
Lime bags are best changed every 1?2 months, so that the tea can be stored for a long time without deteriorating. Take 1 kg of charcoal into a small bag, put people tile altar or the bottom of a small iron box, and then the packaged tea leaves arranged in layers, and then seal the altar mouth, charcoal bag should be changed once a month.
Tea leaves into a dry bottle of warm water, the bottle of warm water with wax sealing and wrapped in tape. Fix the deoxidizer in one corner of a thick plastic bag, and then seal the tea bag, the effect is also good.
Put the new tea into iron or wooden tea canisters, seal the mouth of the canisters with adhesive tape and put them in the refrigerator, and keep the temperature at 51 for a long time.
3. Tea Knowledge Encyclopedia
First, the correct purchase of new tea, recognize the old tea.
As tea in the storage process of nutrient composition changes, the sensory quality of tea with the prolongation of the preservation of time and deterioration, so in the purchase, you should buy recently produced tea, that is, to buy new tea, less to buy old tea. Second, the correct purchase of spring tea, recognize the summer and autumn tea.
Due to the spring tea buds in the fat, green and green color, soft leaf quality, white hair show, spring tea than summer and autumn tea taste more fresh, aroma is more intense, health effects are more pronounced, and the spring tea during the growth of the general no pests and diseases, without the use of pesticides, tea pollution is less, so the spring tea is the best quality of green tea tea in a year. Summer tea in the amino acid, vitamin content significantly reduced, making the summer tea anthocyanin, caffeine, tea polyphenol content increased significantly, thus taste bitter.
Autumn tea taste thin, and the aroma is not high, the leaf color is more yellow. Therefore, when buying tea, carefully distinguish between spring tea and summer and fall tea, correctly buy spring tea.
Third, the correct identification of famous tea and ordinary tea: 1, West Lake Longjing tea produced in Hangzhou, Zhejiang Province, West Lake District. Tea leaves are flat, leaf tender, color shape neat, consistent width, green-yellow, smooth to the touch, a bud or two leaves, buds longer than the leaves, generally longer than 3 cm, buds and leaves uniformly into the dozen, do not bring pinch, debris, small and exquisite.
Longjing tea tastes fresh and fragrant, while counterfeit Longjing tea is mostly grassy, with more pinches and not smooth to the touch. 2. Huangshan Mao Feng is produced in Huangshan, Anhui Province.
The shape is tender and slightly curled, the buds are fat and strong, uniform, with sharp hairs, the shape is a bit like "bird's tongue", the leaves are golden yellow, the color is tender and green and oily, the aroma is fresh, the water is clear, apricot-yellow and bright, the taste is mellow and thick, sweet, and the taste of the bottom of the buds and leaves is made into a dozen, thick and colorful. Fake tea is earthy yellow, bitter flavor, the bottom of the leaf is not dozen.
3, Biluochun produced in Jiangsu Wu County, Taihu Lake, Dongting Mountain Biluo Peak. Silver buds are revealed, a bud and a leaf, the total length of the tea leaves is 1.5 cm, the teeth are white hair curly shape, the leaves are curly and clear green, the leaf bottom is young and tender, uniform and bright.
Fake tea is a bud and two leaves, the length of the buds and leaves are not uniform, yellow. 4, Xinyang Mao Jian produced in Henan Xinyang Dong Yunshan.
Its shape is tight and thin, round, light, straight, clear black, generally a bud of one leaf or a bud of two leaves. The fake one is curly and the leaves are yellow.
5, Junshan silver needle produced in Hunan Yueyang Junshan. By the unfolding of the fat young buds made of buds fat straight, uniform, full of velvet hair, color and lustre golden yellow bright, fresh aroma, tea color light yellow, taste sweet and fresh, brewing looks like the buds rushed to the water, suspended upright, and then slowly sinking to the bottom of the cup, in the shape of a group of bamboo shoots out of the ground, but also like a silver needle upright.
Fake silver needle for grass flavor, after the bubble silver needle can not stand up. 6, Keemun black tea produced in Keemun County, Anhui Province.
Tea color is brownish red, cut into 0.6 ~ 0.8 cm, strong flavor, strong and mellow, fresh. Fake tea is usually with artificial coloring, bitter taste, thin, strip leaf shape is not uniform.
7, Tieguanyin is produced in Anxi County, Fujian. Leaf body heavy as iron, shape beautiful as Guanyin, more spiral, color sand green glossy, green tip, with natural orchid fragrance, soup color clear golden yellow, taste mellow and sweet, slightly bitter in the mouth, immediately turn sweet, and brewing, the leaf bottom to carry out, green and red edges, plump and bright, each tea with tea branches.
Fake tea leaf shape long and thin, thicker cords, no green green and red edges, leaf bubble three times after the flavor. Fourth, the labeling on the product packaging should be complete.
Some of the famous tea has a regional protection logo, pollution-free tea and organic tea on the packaging have nationally recognized logo, choose the varieties suitable for their own tastes, buy the products they need. Fifth, choose a larger scale, product quality and service quality of the products of well-known enterprises.
Due to the larger production enterprises on the quality of raw materials control is more stringent, advanced production equipment, higher level of corporate management, product quality is also guaranteed. Sixth, consumers when tasting tea.
(1) first look at the shape of the tea. General high-grade strip tea, tender raw materials, fine workmanship, its ropes fine tight, sharp seedling revealed, containing more milligrams; low-grade strip tea raw materials coarse old, sloppy work, loose ropes.
General high-grade tea color and lustre bright and moist, low-grade tea color withered lack of luster or more coarse old piece, color and lustre tea miscellaneous; old tea color and lustre withered dark hair stagnation. High-grade tea should be clean tea and non-tea inclusions, low-grade tea is allowed to have with some of the tea tip inclusions, but never allow the presence of non-tea inclusions.
Smell aroma, high-grade tea aroma fragrance, fresh and persistent; mid-range tea, although high, but not persistent; low-grade tea aroma is low, often with coarse gas. If there is smoke, rancid, mold, coke, old fire and other odors, it is a second-grade tea, the serious should be regarded as inferior tea.
(2) identify the pure and miscellaneous tea flavor, thick, thin, clear, strong and weak, fresh and pure, bitter, astringent, mellow, with or without *** sex. Tea soup to the entrance slightly bitter, sweet aftertaste is good, to the entrance bitter, taste bitter and astringent for the worst.
General black tea flavor to strong strong fresh for good, raw materials tender green tea to fresh alcohol back to sweet for good; work black tea to fresh sweet and tender or fresh strong and sweet for good; oolong tea to mellow back to sweet for good. (3) look at the soup color, general high-grade green tea soup color to tender green bright, apricot green bright for good, black tea to red thick bright, gold ring golden yellow bright for good.
Tea is a kind of young and old with health care function of food, all the nutrients are easier to be absorbed and utilized by the human body, so for the vast majority of people is a very good drink. Although tea is a good drink, but consumers should also pay attention to the following points when drinking: 1, drinking overnight tea has advantages and disadvantages.
Overnight tea because of the time is too long, most of the vitamins have been lost, and soup proteins, sugars, etc. become bacteria, mold reproduction nutrients, so it is not suitable for drinking. But not spoiled overnight tea has its own medical uses, overnight tea is rich in acid, can prevent capillary hemorrhage, such as stomatitis, tongue pain, eczema, bleeding gums, sores and pus, etc., can be treated with overnight tea.
Eyes often tearing or blood, but also several times a day with overnight tea to wash the eyes, have a better effect, before and after brushing your teeth in the morning or after meals, gargle a few mouthfuls of overnight tea, can make the breath fresh, and have the role of solid teeth. 2, before going to bed, after taking medication, before and after meals, after drinking tea is not appropriate.
3, sleep easily insomnia, cold fever, gastric ulcer patients, pregnant women should not drink tea.
4. The basic knowledge of tea /
China's tea is a lot of tea, divided into six categories of tea: green tea, green tea (oolong tea), black tea, black tea, yellow tea, white tea.
Six basic types of tea (specific tea names to add)
1. Green tea Xihu Longjing; Huiming tea; Dongting Biluochun; Guzhu Purple Tea; Wuzi Xianxianhao; Huangshan Maofeng; Yunwu Maojian; Zenghou Yinjian; Xinyang Maojian; Pingshui beads of tea; Baohong Tea; Shangrao White Eyebrows; Trail Mountain Tea; Emei Bamboo Leaf Green; Nan'an Shiting Green; Rangtian snow green; Mengding Tea; Yongxi Fire Green; Cactus Tea; Tianshan Green Tea; Yongchuan Xiuzha; Emei Bamboo Leaf Green Green tea; Yongchuan Xiuya; Xiuning Songluo; Enshi Yulu; Duyun Maojian; Qukeng Maojian; Guiping Xishan tea; Laozhu Da Daiquan; Quangang Hui Bai; Meibei tea; Anji white slices; Nanjing Rain Tea; Jingting Green Snow; Tianzun Gongya; Beach tea; Shuanglong Silver Needle; Taiping Monkey Kui; Yuanming Tea; Xiashou Bifeng; Qimba Misty Hao; Kailhua Longshu; Lushan Yunwu; Anhua Pine Needle; Riqing Xuezha; *** Maojian; Jiangshan Green Oyster; Liu'an Gua Slices; Gaoqiao Silver Peak; Yunfeng and Coiled Hair; Hanshui Silver Shuttle; Yunnan White Hair; Zunyi Maofeng; Jiuhua Maofeng; Wugai Mountain Rice Tea; Jinggang Cuilu; Shaofeng; Gulao Tea; Shucheng Orchid; Zhou Biyun; Xiaobu Rock Tea; Huading Yunwu; Nanshan White Hair Sprout; Tianzhu Jianshao; Huangzhu White Hair; Maegu Tea; Cheyun Mountain Maojian; Guilin Maojian; Jiande Bao Cha; Ruizhou Phellodendron Bark Tea; Shuangqiao Maojian; Qintang Maojian; Donghu Silver Hair; Jianghua Mao Jian; Dragon Dance Tea; Guishan Rock Green; Wuxi Haocha; Guidong Linglong Tea; Tianmu Qingdeng; Xinjiang Down Tea; Jinshui CuiFeng; Jintan Bird's Tongue; Guzhang Mao Jian; Shuangjing Green; Zhou Ta Tie Tea; Wenjun Tender Green; Qianfeng Snow Lotus; Lion's Mouth Silver Sprout; Yandang Maofeng; JiuLong Tea; Emei Maofeng; Nanshan Shoumei; XiangBo Green; Saiqing; Shanyan CuiLong Tea; MengDing GanLiang; Rui CaoQui; HeXi YuanTea; PuduBo Tea; XueFeng MaoJiao; QingCheng Snow buds; Bao Ding green tea; Longzhong tea; Songyang silver monkey; Longyan oblique back tea; Meilong tea; Lanxi Mao Feng; Guanzhuang Mao Jian; Yunhai white hair; Lotus heart tea; Jinshan Cui Ya; Erui; Niubai tea; Huanfo tea; Guiding Yunwu tea; Tianchi Ming Hao; Tongtian rock tea; Lingyun white tea; Steaming green pancha; Yunlin tea; Pan'an Yunfeng; Lvchun Maoyu tea; Dongbai spring buds; Taibai top buds; Thousand Island jade leaves; Qingxi Yu buds; Zaoling tea; Xianju green tea; Qijiang Hall green tea; Bilv; sunshine green; Shanyan Cui green; Mengdian Ganliao; Ruicaoquai; Hexi round tea; Putuo Buddha tea; Xuefeng Maojiao; Qingcheng Bilu; Seven Realms Hall Green Tea; Nanyue Yunwu Tea; Daguan Cuihua Tea; Meijiang Cui Piece; Cui Luo; Wokeng Tea; Yuyao Waterfall Tea; Cangshan Snow Green; Xiangqi Yunwu; Huaguo Mountain Yunwu Tea; Narcissus Puffy Hook Tea; Suichang Silver Monkey; Mojiang Cloud Needle.
2. Oolong tea Wuyi Rock Tea; Wuyi Cinnamon; Minbei Narcissus; Tieguanyin; White Hairy Monkey; Bajiao Pavilion Longshu Tea; Golden Osmanthus; Yongchun Buddha's Hands; Anxi Color Seed; Phoenix Narcissus; Taiwanese Oolong; Taiwan Packed Seed; Dahongpao; Tie Luohan; White Crown Chicken; Water Golden Turtle.
3. Black Tea Keemun Work; Lake Red Work; Dian Hong Work; Min Hong Work
Worker Red Tea; Ning Hong Work; Yihong Work; Yuehong Work; Chuanhong Work; Zhenghe Work; Min Hong Work; Tanyang Work; Bailin Work.
4. White Tea: Silver Needle White Hair; White Peony; Gong Mei.
5. Yellow tea Junshan Silver Needle; Mengding Yellow Bud; Beigang Maojian; Luyuan Maojian; Huoshan Yellow Bud; Weijiang White Maojian; Wenzhou Yellow Soup; Anhui Yellow Tea; Guangdong Daxieqing; Haima Gongcha.
6. Black tea Hunan black tea; old green tea; Sichuan border tea; six fort loose tea; Pu'er tea.
Reprocessed Tea (Supplementary)
1. Pressurized Tea Tuo Tea; Bamboo Scented Tea; Puerh Square Tea; Rice Brick Tea; Black Brick Tea; Flower Brick Tea; Porcupine Brick Tea; Xiangjian Tea; Green Brick Tea; Kang Brick; Golden Tip; Square Bun Tea; Liu Bao Tea; Round Tea; Cake Tea.
2. Jasmine Tea; Orchid Tea; Osmanthus Tea; Honeysuckle Tea; Orchid Tea; Rose Tea; Tortoise Tea.
5. Tea Knowledge Encyclopedia
Tea is a dicotyledonous plant, about 30 genera, 500 species, distributed in the tropics and subtropics, there are 14 genera in our country, 397 species, the main production of the south of the Yangtze River, of which the tea genus Camellia and the genus Schima, etc. are extremely rich in economic value.
Trees or shrubs; leaves alternate, simple, leathery, without stipules; flowers often bisexual, rarely unisexual, solitary or several aggregates, axillary or terminal; sepals 5-7, imbricate; petals usually 5, rarely 4 to many, imbricate; stamens very many, rarely a few, separate or more or less united; ovary superior, rarely inferior, 2-10-locular, with 2 to many ovules per locule; fruit a capsule, or Not dehiscent and drupelike What we generally call tea is to refer to the processing of the leaves of the tea tree, you can use boiling water to drink a drink directly.
6. Urgently need the knowledge of various kinds of tea
Green tea - unfermented tea (fermentation degree is zero) Longjing, Biluochun Yellow tea - Huifeng fermented tea (fermentation degree of 10-20m) White peony, white silver needle white tea - mildly fermented tea (fermentation degree of 10-20m). --Lightly fermented teas (20-30m degree of fermentation) Junshan silver needle (Junshan Yinzhen) Green tea (Oolong tea) - Semi-fermented teas (30-60m degree of fermentation) Iron Goddess of Mercy, Wenshan Baozhuang, Jieding Oolong Black tea - Fully fermented teas (10-20m degree of fermentation) Longjing, Biluochun Full-fermented tea (fermentation degree of 80-90m) Qihong, Yihong, Dianhong, Zhenshan Xiaojiao Black tea - post-fermented tea (fermentation degree of 100m) Liubao, Puerh
There are also flower tea: chrysanthemums, roses Place of origin, Puerh, Yunnan, the flavor characteristics of the mellow fragrance, suitable for the elderly to drink, in Guangdong, the elderly, and the elderly to drink, and the elderly to drink, and the elderly to drink. The tea is suitable for the elderly to drink, and is also known as old man's tea in Guangdong. Tieguanyin, Anxi, Fujian, flavor characteristics of the fragrance, digestive, suitable for women to drink, in Guangdong, also known as the pretty girl tea. There is also chrysanthemum tea. The above three are the most common in Guangdong's teahouses most people drink, basically 98% of the market, and then the more expensive is the top of the frozen oolong and Xihu Longjing, both of which are particularly fragrant, far from being able to smell
.