Does the tea expire? Will the tea expire or not

Tea leaves expire. Tea has a shelf life, but it is related to the variety of tea, and the shelf life of different tea is different. Ordinary tea, fresh is better.

For example, green tea has a shelf life of about one year at room temperature. But the main factors that affect the quality of tea are temperature, light and humidity. If the storage method is done properly, these factors are reduced or eliminated, and the quality of the tea can be guaranteed in the long term.

Pu'er tea from Yunnan, brick tea from ethnic minorities, has a good aging and a shelf life of 10 to 20 years. Another example is Wuyi rock tea, which is held every other year, with a strong aroma and mellow taste. Hunan black tea, Hubei's Fu brick tea, and Guangxi's Liubao tea, if stored properly, will not deteriorate, and can even improve the quality of tea.

Judging whether the tea is expired mainly includes the following aspects: whether it is moldy and not fresh; whether the green tea turns red, whether the soup turns brown and dark; The intensity, astringency, and freshness of the taste decrease. Also, look at the expiration date on its packaging.

Also, if it is a loose tea, it is best not to drink it for more than 18 months. Expired tea leaves can be soaked and placed in pots as nourishment for flowers. They can also be dried to make pillows instead of buckwheat.

Pillows made of tea are good for sleep.

Yes, it will expire.

Tea leaves have an expiration date, and different teas have different shelf life. For example, the shelf life of green tea is generally 1 year. Black tea belongs to the fully fermented tea category and has a longer shelf life than green tea.

Canned black tea can be stored for about 3 years, and black tea packaged in paper bags can be stored for about 2 years. On the contrary, Pu'er tea is better aged, and the shelf life can reach about 10-20 years. However, as long as the black tea in Hunan, the Fu brick tea in Hubei, and the Liubao tea in Guangxi are stored properly, not only will they not deteriorate, but they can even improve the quality of tea.

Extended content

Tea tree varieties. 1. From the classification point of view, they belong to four families:

1. Five treasures tea: Guangxi tea, Dabud tea, Guangnan tea, Wushu tea, sparse tooth tea;

2. Five-pillar tea: thick axis tea, five-pillar tea, old black tea, Dali tea, Yunnan-Burma tea, Yuanji tea, wrinkled leaf tea, Maguan tea, Hani tea, multi-petal tea;

3. Bald room tea: Mengla tea, Dehong tea, Rib tea, Pseudocalyx tea, False Turquoise tea, Rongjiang tea, Purple Fruit Tea, Multi-pulse tea;

4. Tea series: tea, bitter tea (variety), white hair tea (variant), Pu'er tea, calyx tea, pseudo-fine calyx tea, Yuanjiang tea, Gaoshu tea.

2. Tea varieties are mainly divided into two categories: group varieties and clones.

1. The group varieties are: Mengku large-leaf tea, Menghai large-leaf tea, Fengqing large-leaf tea (the above is a national-level high-quality variety), Yuanjiang glutinous tea, Yangta large-leaf tea, Zhenyuan stirrup tea, Luchun Mayu tea, Lushui large-leaf tea, Iceland large-leaf tea, Bazi Baimao tea, Yunlongshan large-leaf tea, Jinggu large-leaf tea, Tuantian large-leaf tea, Bangdong large-leaf tea, Guanzhai tea, Dachang tea, Lancang large-leaf tea, etc.

2. Four clones: It is the offspring of Yunnan large-leaf species that are selected and bred by asexual reproduction. There are mainly Yunkang No. 43 and long-leaved Baihao; Yunkang 1O, Yunkang 14; Yunmei, Yungui, Dwarf Feng, etc.; Yunxuan No. 9 and Yunkang No. 37 are all descendants of Menghai species.

3. Tea varieties.

According to the classification method of "The Book of Chinese Tea" edited by Chen Zongmao, it is divided into: green tea, black tea, oolong tea, white tea, yellow tea, and dark tea.

References Encyclopedia - Tea.

Tea leaves will expire, different tea leaves, different storage conditions, different shelf life.

If the tea leaves are expired, it will slowly become moist and some mold will grow in them, so it is best not to drink the expired tea leaves. If you can't drink it, is there any other use for expired tea?

Uses of expired tea:

1. Dehumidification and deodorant.

Dried tea has strong water absorption, pour a little expired tea in a container, put it in the refrigerator or drawer and other places that are afraid of moisture, the dehumidification effect is very good, and it can also emit a faint tea fragrance, which has the effect of deodorization.

2. Fertilizer. Brewed tea leaves can promote the growth of plants, and the leaves that grow are more bright green and shiny. You can soak the expired tea leaves in water and then pour them into a flower pot, which is a very good fertilizer.

3. an ashtray.

Spread a layer of expired tea leaves in the ashtray, add a little water, flick the ash inside, or extinguish the salt, so that the smoke and the smell of smoke will not drift everywhere.

It will expire, and the moldy tea can no longer be drunk. Usually, the shelf life of tea leaves in sealed packaging ranges from 12 months to 24 months, which will be indicated on the packaging bag of the tea. The shelf life of bulk tea is shorter, so when buying, try to buy the new tea of the year.

Yes, in the case of good preservation, the shelf life stipulated by the state is one and a half years, and we can't keep it well at home, and we can put it for two months at most.

Of course everything has an expiration date.

Green tea, black tea will expire, if Pu'er is stored properly, the older the better.

No. As long as it doesn't get moldy, you can drink it.

It will become moldy, and the older it is, the lighter the smell will be.

The tea will expire.

Different tea leaves have different shelf life, green tea, yellow tea has a shelf life of 18 months, black tea has a shelf life of 24 months, green tea has a shelf life of 36 months, while white, black tea, and pu-erh tea have no shelf life and can be stored for a long time.

Once the tea leaves expire, they should not be drunk again. You can judge whether it is expired by looking at the shelf life marked on the tea package, or whether the dry tea is moldy, whether it smells, and whether the color of the tea soup has changed and seeped.

How to preserve the tea

1. Low temperature storage method

Keep the tea storage environment below 5 degrees Celsius, that is, use cold storage or freezer to preserve the tea leaves.

2. Storage method of iron cans

Choose the best tinplate double-lid color tea on the market as a container. Before storage, check whether the body and lid of the can are closed and cannot leak. When storing, the dried tea leaves should be canned, and the cans should be tightly packed. This square model method is convenient to use, but it is not suitable for long-term storage.

3. Charcoal sealed storage method

Take advantage of charcoal's extremely moisture-absorbing properties to store tea. Burn the charcoal first, immediately cover it with a brazier or iron pot to extinguish it, and then wrap the charcoal in a clean cloth and place it in the middle of the clay pot containing the tea leaves. The charcoal in the cylinder should be replaced in time according to the situation of Hu Chao.

4. Storage method of hot water bottle

Choose a warm thermos as containers. Fill the dried tea leaves into the bottle, fill them to minimize the amount of air retention, close the bottle with a cork, seal the edge with white wax, and then wrap it with adhesive tape. Due to the low amount of air in the bottle and the stable temperature, this method is also effective and easy to maintain.

5. Food bag storage method

First, wrap the tea leaves in clean and odorless white paper, then wrap a piece of kraft paper, and then put it into a non-porous plastic food bag, gently squeeze it, and squeeze out the air in the bag.

Immediately tie the bag with a thin soft rope to take a plastic food bag, put it on the outside of the first bag, squeeze the air in the bag with a rope, and finally put it into a dry and odorless closed iron bucket.

Tea party expired Zhenhong.

The shelf life of different tea leaves is different, green tea, yellow tea is 18 months, black tea is 24 months, green tea is 36 months, while white, black and pu-erh tea can be stored for a long time without a definite shelf life.

Tea leaves that have an expiration date expire, but not all tea leaves have an expiration date. Among the six major tea categories, the shelf life of green tea and yellow tea is 18 months, the shelf life of black tea is 24 months, and the shelf life of green tea can reach 36 months.

Only white, black and pu-erh tea can be stored for a long time, there is no definite shelf life, and the older it is, the more fragrant it is, and the longer it is left, the higher the quality. Of course, if the tea leaves are damp, moldy and deteriorated during storage, this is another matter.

The main factors affecting the quality of tea are temperature, light and humidity, during the storage of tea, should be done to avoid high temperature, direct sunlight, air humidity, but also away from odor, because once the tea is stained with other flavors, it will be difficult to remove.

Tea quality identification:

In general, the quality of tea can be identified by sensory evaluation. It is to grasp the inherent essential characteristics of tea through the human vision, feeling and taste organs, and finally comprehensively judge the quality of tea by seeing, smelling, touching and tasting.

Usually, first hold a handful of dry tea with both hands, put it on the end of the nose, and deeply inhale the smell of tea. Those with a green smell, or mixed with other odors are poor.

At the same time, it can also be identified in combination with the color of tea; Grab a handful of tea leaves with your hands and put them in the middle of a white paper or white plate, spread out the tea leaves, carefully or carry observation, if the green tea is dark green, the black tea is black, the oolong tea is dark green, and the color of each tea is basically uniform, it should be a good tea. If the color of the tea is chaotic, very incongruous, or inconsistent with the original color of the tea, it is of poor quality.

Tea has a shelf life, but it is related to the variety of tea, and the shelf life of different teas is also different. Like Yunnan's Pu'er tea and the brick tea of ethnic minorities, the aging is better, and the shelf life can reach 10 to 20 years. Search shirt code

General products have a shelf life, and as one of the foods, the national food hygiene department has naturally formulated corresponding standards to limit the shelf life. However, the shelf life of tea is related to its variety, and the shelf life of different varieties is naturally different. Therefore, the formulation of the shelf life of tea is generally more "ambiguous".

Can you still drink expired tea?

In Japan, the Ministry of Agriculture, Forestry and Fisheries (equivalent to the Ministry of Agriculture of China) has also given a standard answer to "whether food can be eaten after the expiration date": even after this date, it does not mean that it cannot be eaten. If you don't find any abnormal color or smell, you can still eat it.

To put it simply, tea is also a kind of food, and the expiration of tea does not necessarily mean that it has deteriorated, and it may still be drunk after expiration, but it can never be drunk again if it deteriorates, which has little to do with the shelf life.