How to choose tea at ordinary times? It is not easy to buy tea. You need to master a lot of knowledge to get good tea. If you are not an expert, it is difficult for ordinary people to tell the quality of tea. Today I'm going to teach you how to choose tea from its shape.

First, how to buy good tea

1, gentle

Generally, tea with good tenderness meets the appearance requirements ("smooth, flat, flat and straight"). But tenderness can't be judged only by the number of fine hairs, because the specific requirements of various teas are different. For example, the high-quality Lion Peak Longjing is fluff-free. The tenderness of bud leaves is judged by fluff, which is only applicable to "fluff" teas such as Mao Feng, Maojian and Yinzhen. What needs to be mentioned here is that the most tender fresh leaves should also sprout, and it is not appropriate to pick the bud heart unilaterally. Because the bud nucleus is an imperfect part, its content is not comprehensive, especially the chlorophyll content is very low. Therefore, tea should not only be made into buds in pursuit of tenderness.

2. Cable

Cord is a certain shape and specification of various tea sets, such as fried green strips, round pearl tea, flat longjing tea, granular red broken tea and so on. Generally, long strip tea is elastic, straight, strong, thin, round, flat, light and heavy; Round tea depends on the elasticity, uniformity, weight and ethereal degree of particles; Flat tea to see if it is smooth and meets the specifications. Generally speaking, the rope is tight, heavy, round (except flat tea) and straight, indicating that the raw materials are tender, the workmanship is good and the quality is excellent; If the appearance is loose, flat (except flat tea), broken, smoky and burnt, it means that the raw materials are old, the workmanship is poor and the quality is poor. Take the standard of Hangzhou green tea as an example: Grade I, Grade II, Grade III, Grade IV, Grade V, Grade VI, fine grain, fine grain, compact grain, compact grain and slightly loose grain.

Step 3 color

Tea color is closely related to the tenderness of raw materials and processing technology. All kinds of tea have certain color requirements, such as black tea, green tea, oolong tea and black tea. However, no matter what kind of tea, good tea requires consistent color, bright luster, oily and fresh. If the colors are different, the shades are different and dull, it means that the raw materials are old and tender, the workmanship is poor and the quality is poor.

The color of tea also has a great relationship with the origin and season of tea trees. Such as alpine green tea, the color is green and yellowish, fresh and bright; Low camellia or flat tea is dark green and shiny. In the process of making tea, due to improper technology, the color often deteriorates. When buying tea, you should judge according to the specific tea you buy.

4. decisive

The whole crushing is the shape and degree of tea crushing, with uniformity being the best, followed by crushing. The standard tea tasting is to put the tea in a plate (usually made of wood), so that the tea can be layered in turn according to its shape, size, weight, thickness and crushing degree under the action of rotating force. Among them, the thick ones are at the top, the tight ones are concentrated in the middle, and the broken ones are deposited at the bottom. All kinds of tea, medium-grade tea is the best. The upper layer is generally thick and old leaves, with light taste and light water color; There are many broken teas at the lower level, and the taste is often too strong after brewing, and the soup is darker.

5, clarity

Mainly depends on whether tea is mixed with camellia oleifera. , tea stalks, tea powder, tea seeds and the amount of inclusions such as bamboo chips, sawdust, lime and sediment mixed in the production process. Tea with good purity does not contain any inclusions. In addition, it can also be identified by the dry aroma of tea. No matter what kind of tea, there must be no peculiar smell. Every kind of tea has a specific aroma, and the dry aroma and wet aroma are also different, depending on the specific situation. Green gas, burnt smoke and cooked stuffy smell are not desirable. It is the taste, aroma and color of the brewed tea soup that is the easiest to judge the quality of tea. So if you can, try making tea. If you have a special preference for a certain kind of tea, you'd better find some information about this kind of tea, accurately understand its color, fragrance and shape characteristics, and compare the tea you buy every time, so that if you have more times, you will easily get to the point quickly. Domestic tea varieties are loaded, and non-professionals are unlikely to judge the quality of each kind of tea, just choosing what they like. Generally speaking, locally produced tea is pure, but the quality of tea is different due to the difference of tea making technology.

Second, how many kinds of tea are there?

1, green tea

Green tea is a kind of tea made without fermentation, which refers to a drink made from new leaves or buds of tea trees without fermentation, deactivation, shaping and drying. Its dry tea color and brewed tea soup and tea leaves are mainly green, hence the name green tea.

Green tea belongs to non-fermented tea, because of its characteristics, it retains more natural substances in fresh leaves. Among them, tea polyphenols and caffeine retain more than 85% of fresh leaves and about 50% of chlorophyll, and the loss of vitamins is less, thus forming the characteristics of green tea, such as clear soup color, green leaves color and strong taste convergence.

Famous products in green tea include: West Lake Longjing, Dongting Lake Biluochun, Luan Guapian, Xinyang Maojian Tea, Taiping Monkey Kui and so on.

2. Black tea

Black tea is a kind of fully fermented tea, which is refined through a series of technological processes such as withering, rolling (cutting), fermentation and drying. Black tea is named after the tea soup and leaf background color are red after brewing dry tea.

During the processing of black tea, a chemical reaction centered on the enzymatic oxidation of tea polyphenols took place, and the chemical components in fresh leaves changed greatly. Tea polyphenols decreased by more than 90%, resulting in new components such as theaflavins and thearubigins. Compared with fresh leaves, the aroma substances increased obviously. Therefore, black tea has the characteristics of black tea, red soup, red leaves and glycol.

Famous products in black tea include Yunnan Dianhong, Anhui Qi Hong, Hubei Hong Xuan, Sichuan Chuanhong and Guangdong Hong Ying.

3. Yellow tea

Yellow tea belongs to light fermented tea, and its processing technology is similar to that of green tea, except that a "yellow blocking" process is added before or after the drying process to promote partial oxidation of polyphenols and chlorophyll. The most important process is to stuffy yellow. The main method is to wrap the immobilized and twisted tea leaves with paper, or cover them with wet cloth after stacking, and the time varies from tens of minutes to several hours, so as to promote the non-enzymatic automatic oxidation of tea blanks into yellow under the action of hydrothermal treatment. Yellow tea is named according to this feature.

The yellowing process of yellow tea is that high temperature inactivation destroys the activity of enzymes, and then wet heat leads to the oxidation of polyphenols and produces some colored substances. The quality characteristic of yellow tea is "Huangyehuangtang".

Famous products in yellow tea are: Junshan Yinzhen, Sichuan Mengding Huangya, Guizhou Haima Gongcha, Anhui Huoshan Huangya and Guangdong Dayeqing.

4. Black tea

Black tea belongs to post-fermented tea, and the tea-making technology generally includes four processes: enzyme fixation, rolling, fermentation and drying. Generally, the raw materials of black tea are coarse and old, and it is often accumulated and fermented for a long time in the production process, so the tea leaves are oily black or dark brown, so it is called black tea.

Black tea has to go through the process of steaming and slow drying, so it is reflected in the quality that the tea color is brown, the soup color is orange or orange-red, the fragrance is pure but not astringent, and the leaves are yellow and brown.

Famous products in black tea include: Anhua black tea in Hunan, Pu 'er tea in Yunnan, Sichuan side tea, Hubei old black tea, Guangxi Liubao tea, etc.

5. Green tea (oolong tea)

Green tea, also called oolong tea. Green tea belongs to semi-fermented or full-fermented tea, which is a high-quality tea after picking, withering, shaking, frying, rolling and baking. Oolong tea (green tea) is called "beauty tea" and "bodybuilding tea" in Japan.

Green tea (oolong tea) belongs to semi-fermented tea, that is, a kind of tea whose leaves are slightly red after proper fermentation, which is between green tea and black tea. Both the freshness of green tea and the sweetness of black tea. Because its leaves are green in the middle and red in the edge, it is called "green leaves with red edges".

Famous products in green tea (oolong tea) include Wuyi Rock Tea, Anxi Tieguanyin Tea, Frozen Top Oolong Tea, Phoenix Narcissus, Dahongpao and so on.

6.white tea

White tea is a kind of micro-fermented tea. After picking, it is dried in the sun or with slow fire without enzyme fixation and twisting. White tea is named after its finished tea, which is mostly bud head and covered with white hair, such as silver as snow.

The main feature of white tea is silver, which is known as the beauty of "green makeup". White tea has the characteristics of complete appearance buds, full hair, fresh Qing Xiang, clear yellow-green soup color and light sweet taste.

The famous white tea products are: Baihao Yinzhen, Bai Mudan, Fuding White Tea, Gongmei, Shoumei and so on.

3. What kind of tea is the best?

1. green tea: tea leaves are unfermented, that is, fresh leaves are spread and dried and directly put into 120 Baidu's hot pot for frying, so as to keep their green characteristics.

The main colors are: West Lake Longjing Tea, Biluochun Tea, Huangshan Mao Feng Tea, Lushan Yunwu Tea, Lu 'an Guapian Tea, Mengding Tea, Taiping Monkey Kui Tea, Guzhu Zizun Tea, Xinyang Maojian Tea, Zhuyeqing Tea, Duyun Maojian Tea, Pingshui Bamboo Tea, Xishan Tea, Yandangshan Mao Feng Tea, Huading Yunwu Tea, Yongxihuoqing Tea, Jingting Green Snow Tea, and so on.

2. Black tea: Contrary to green tea, black tea is a completely fermented tea (the degree of fermentation is above 80%). The name of black tea comes from its soup color red.

The main colors are: Qimen black tea, Dianhong black tea, Yingde black tea and Zhengshan small black tea.

3. Black tea: At first, black tea was mainly sold to border areas, such as Pu 'er tea in Yunnan. Pu 'er tea is made by pouring water on the prepared sun-cured green tea and then fermenting it. Pu 'er tea has the effects of reducing blood fat, weight and blood pressure, and is very popular in Southeast Asia and Japan. But if you really want to lose weight, the most remarkable effect is oolong tea.

4. Oolong tea: Oolong tea, also known as green tea, is a semi-fermented tea between red and green tea. Oolong tea is the most complicated and time-consuming process in the six categories of tea, and the brewing method is also the most exquisite, so drinking oolong tea is also called drinking congou tea.

The main colors are: Wuyi Rock Tea, Anxi Tieguanyin, Phoenix Dan Cong, Frozen Top Oolong Tea, etc.

5. Yellow tea: The famous Junshan Yinzhen tea belongs to yellow tea. The production method of yellow tea is a bit like green tea, but it needs a process of blocking yellow in the middle.

The main colors are: Junshan Silver Needle, Weishan Maojian, Huoshan Yellow Bud and Huoshan Yellow Tea.

6. White tea: White tea is mainly withered and dried. White tea has good appearance, aroma and taste.

Main colors are: white silver needle, Bai Mudan.

7. Wood-burning Tieguanyin is a traditional wood-burning process, that is, Tieguanyin with unique fragrance and nutritional value is made by hand with red bricks as the stove, iron tripod frying and firewood as the fuel. It is the most local old-fashioned tea. Of course, it is also a special tea that tourists from all directions can't miss when they visit Xiamen, a sea garden.

Compared with the ordinary Tieguanyin, the wood-burned Tieguanyin is more mellow and natural in taste, with a faint wood fragrance and full of Guanyin charm. But because it is handmade, it takes a lot of manpower and material resources to make it. In addition, the production of Tieguanyin is now basically fully mechanized, and this ancient method of frying firewood and burning Tieguanyin is becoming less and less, which is of course more precious.

Fourth, how to preserve tea?

When storing tea, we can generally adopt these methods:

1, the simplest way to keep fresh in the refrigerator: put the tea in a dry, tasteless and sealable container bottle and put it in the freezer of the refrigerator. If the amount of tea leaves is small and very dry, it can also be packaged and sealed in a double-layer film bag with good moisture-proof performance and put in the refrigerator.

2. The most common storage method of tin cans: put the tea leaves in the tin cans with double covers, and it is best to fill them without leaving any gaps, so that there is less air in the cans. Double cover should be tightly covered,

Glue the gap of the lid with adhesive tape, put the tea can into a double-layer nylon bag and seal the mouth of the bag, which will achieve the best storage effect.

3. The most convenient storage method of the composite bag: put the tea leaves in the composite bag, squeeze out the air in the bag, seal the bag mouth with a sealing machine, then put on a plastic bag, tie the bag mouth tightly, and put it in the refrigerator for cold storage.

4. The most practical thermos storage method: put the tea in a dry thermos, cover it with a cork, seal it with white wax, and then seal it with tape.

In addition, we want to know the water content of tea during storage: green tea should not exceed 5% and black tea should not exceed 7%. We can fry or dry the tea leaves first, and then collect them; Tea also needs light and heat insulation, so there are certain requirements for storage environment.

In addition to storage requirements, drinking tea should be moderate. If the human body consumes too much tea in one day, it will also have an impact on health. Generally speaking, healthy adults usually have the habit of drinking tea. Drink 6 grams-10 grams of tea every day, and it is most appropriate to brew it twice or three times. For people who have a lot of physical labor, physical consumption and food intake, especially those who are exposed to toxic substances in high temperature environment, it is also ok to drink about 20 grams of tea every day. And people who eat more greasy food and have a large amount of alcohol and tobacco can also increase the amount of tea appropriately. It is worth noting that the amount of tea consumed by pregnant women and children should be reduced appropriately.

As for drinking herbal tea or hot tea. In fact, drinking hot tea can cool down quickly, and it can also make people hear clearly and think clearly. Experiments show that when drinking hot tea, sweating can obviously reduce the surface temperature of human skin in a few minutes and greatly improve thirst; When drinking herbal tea, the skin temperature changes little. Therefore, it is better to drink hot tea to quench your thirst in hot summer.

How to preserve the purchased tea?

First, the preservation method of tea

Avoid high temperature when drinking tea;

The optimum storage temperature of tea is zero to five degrees. How high the temperature is, the sugar, amino acids, vitamins and aromatic substances in tea will be decomposed and destroyed, and the quality of tea will be reduced.

Tea should be protected from the sun;

If tea leaves are exposed to the sun for a long time, it will promote the oxidation of tea pigments and esters, and decompose tea chlorophyll into pheophytin. Tea leaves can't be put in glass containers, because they are put in glass containers or transparent plastic bags. After being irradiated by sunlight, its internal substances will react chemically, which will make the quality of green tea worse.

Tea leaves cannot be exposed to oxygen for a long time;

Chlorophyll, vitamin C, esters, aldehydes, etc. The oxygen in tea leaves easily combines with the oxygen in the air. The oxidized green tea leaves will make the tea soup turn red and deep, and the nutritional value will be greatly reduced.

The space for storing tea leaves should not be too wet;

Because tea is a kind of loose and porous hydrophilic substance, it has strong moisture absorption ability. When storing tea, the humidity is preferably 60%. If it exceeds 70%, it is easy to mildew and acidification due to moisture absorption.

In hot summer, tea containers should be kept in the shade.

Second, how to save the purchased tea?

Famous green tea: it is the most easily aged and deteriorated tea among all teas, and it is easy to lose its smooth color and unique aroma. The hygroscopic storage method of quicklime can be used to store famous green tea at home. That is, choose a sealed container (such as a crock, porcelain jar or iron jar without peculiar smell), put the quicklime blocks into a cloth bag and put them in the container, wrap the tea leaves in the cloth bag with kraft paper, seal the mouth of the container and put them in a cool and dry environment. If conditions permit, the tea adsorbed by quicklime can be packed in aluminized composite bags with built-in deoxidizer, sealed and put in the refrigerator, which can keep the quality of tea basically unchanged and keep it for about two years.

Green tea can be said to be the most widely consumed tea, and its efficacy is more valued by both office white-collar workers and dignitaries. Green tea is also famous for its drinking value. Individuals or families who drink green tea for a long time, if they buy more at one time, must store it well and never waste it because of deterioration.

Jasmine tea: It is a reprocessed green tea with high water content and easy deterioration. Pay attention to moisture-proof when storing, and try to store it in a cool, dry and odorless environment.

Black tea and oolong tea: Compared with green tea, aging and deterioration are slower and easier to preserve. Avoid light, high temperature and smelly articles, and can be stored for a long time.

Pu 'er tea: If properly preserved, Pu 'er tea will be more fragrant as it ages. At present, the widely used method is "ceramic pot overlapping aging method": take a wide-mouth ceramic pot and put old tea and new tea into the pot for easy aging. For the tea cake to be drunk, you can disassemble the whole tea cake into loose tea, put it in a pottery jar (don't choose an airtight metal jar), and let it stand for half a month before taking it. This is because ordinary tea cakes tend to be loose in the periphery and thick in the middle. After the above-mentioned "tea-gas blending method", the inside and outside complement each other and enjoy high-quality tea soup.

Third, how to preserve white tea

White tea is a special kind of tea. It is not fried or kneaded, so it has the fresh fragrance of green tea. Long storage time at room temperature, with room for post-fermentation. The longer the white tea is stored. The darker the tea color, the more mellow the tea taste, so the general requirements for the preservation of white tea are as follows:

The first type: white tea is stored in a jar; Tea leaves are stored in tea cans to prevent crushing. It is best to choose tin cans for tea cans, followed by tin cans and paper cans, which require good sealing.

The second type: charcoal storage method; Put a proper amount of charcoal in a small cloth bag and put it at the bottom of the teapot, and then arrange the packaged tea leaves in the teapot in layers. On the sealed jar mouth, charcoal should be replaced once a month.

The third type: cold storage method; The tea leaves are sealed in bags or tea cans and stored in a refrigerator at 5℃.

The fourth type: thermos bottle storage method; Put the white tea leaves into a newly bought thermos bottle and seal it.

Fifth, white tea should be stored at low temperature and away from light; Because, under the condition of high temperature, the chemical changes of tea components accelerate, thus accelerating the aging of quality, while light causes photochemical reactions of tea components, thus making the quality lose its original style.

Sixth: the preserved environment should be odorless, tasteless and nontoxic.

The longer the storage time of white tea, the higher its taste and medicinal value. However, the correct preservation method of white tea can ensure that the efficacy of white tea is not destroyed, and even the medicinal value is getting higher and higher. At the same time, white tea is also rich in vitamins, so it can be drunk often, especially for children, which is good for health.

Fourth, how to preserve black tea?

The preservation of black tea needs to pay attention to several aspects. First, the preservation of black tea must avoid direct sunlight, because direct sunlight will react with black tea. In addition, the preservation of black tea should avoid closed rooms and avoid odor and humidity.

How to preserve black tea: avoid sunlight.

The deterioration or taste change of tea is often due to the direct purification of chemical reactions such as direct sunlight. The color of tea will also change to a certain extent. It smells strong sunshine, but it tastes like tea, but it doesn't taste like tea. So put it in a cool place and avoid direct sunlight.

How to preserve black tea: avoid closing the room

The storeroom where black tea is stored must be ventilated to allow it to naturally oxidize and absorb natural moisture in the air. When packaging, we should also choose packaging materials with strong air permeability for packaging and storage.

How to preserve black tea: how to avoid peculiar smell?

Tea itself has a strong absorption effect on external odor. Don't put other smelly items in the storage room, especially in hot weather. When storing tea, don't put other foods with bad smell in the refrigerator to avoid mixing with bad smell. Avoid eating food in the storage room where tea leaves are stored, otherwise it will be mixed with odor.

How to preserve black tea: avoid dampness.

In the rainy season, it is necessary to keep the indoor temperature and dryness, so as to prevent the indoor moisture from making the tea moldy and affecting the normal storage and subsequent normal drinking of the tea.

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