Can Tieguanyin drink it after three years of expiration?

Tieguanyin tea.

It has expired for three years, and if it is not moldy and spoiled, it can still be drunk. But the taste gets worse. If you are reluctant to throw it away, then make a cup of food and try it first to see how it tastes.

Tieguanyin is generally stored in the refrigerator, and this tea is afraid of high temperature storage. If you keep it outside, you basically can't drink it for a year. It's not that he can't drink it, it's just that he doesn't have much tea taste because of the storage failure.

Most Tieguanyin have a shelf life of two years. And as a non-staple food, his product label will clearly state how long the shelf life is. Tieguanyin has an expiration date.

If there is no dampness during storage, it can be drunk if it is stored well.

Tieguanyin tea is divided into three types:

The shelf life of the fragrant Tieguanyin is between 18 and 24 months, and it is generally marked as 24 months.

The shelf life of the strong fragrance type Tieguanyin should be distinguished according to the degree of roasting, and the shelf life of the lightly baked Tieguanyin is about two years.

There is no very clear concept of the shelf life of Chenxiang Tieguanyin, 5 years, 10 years or even more than 15 years, as long as it is stored properly, there is no big problem.

Don't drink it if it's expired, in case there is any abnormal reaction, the gain outweighs the loss.

As long as it is not spoiled by moisture, it can be drunk, but the taste will be a little worse.

Tieguanyin is a semi-fermented tea, as long as it is sealed and stored at low temperature, it can be drunk without deterioration.

Don't eat expired things to prevent him from producing harmful substances. Sometimes it can cause cancer.

The shelf life is actually the manufacturer's commitment to quality, it is actually part of the brand, the shelf life is marked as 12 months, or 24 months or 36 months is actually the manufacturer's behavior, of course, the manufacturer will also do a certain storage experiment to demonstrate the length of the shelf life. Under certain storage conditions, if the manufacturer marks the shelf life too long, it will be very risky to maintain its own brand.

The shelf life of tea will have a lot to do with the type of tea, the shelf life of green tea and jasmine tea loved by Beijing people will be relatively short, generally 12 months or 18 months, but if the quality of the tea product itself is excellent, it is mainly to be dried and stored, and there is no problem with more than double the time.

Tieguanyin storage method

1. Pumping nitrogen storage method.

It is in a closed container, replacing air with nitrogen, so that the tea can be stored under oxygen-free conditions. The specific method is to first put the dried tea leaves into a tea can or aluminum foil bag with a curled lid, then extract the air, fill it with pure nitrogen, and finally seal it.

At room temperature, the quality can generally be maintained for one year. If it can be stored at low temperature, the effect is better.

2. Low temperature storage method.

It is to prevent oxidation and deterioration of tea leaves at low temperatures. Specifically, the dried tea leaves (tea with a moisture content of less than 5%) are first packed into a well-sealed receptacle and stored at a low temperature below 3 degrees Celsius.

For the storage of bulk tea, it is necessary to build a special cold storage, which is moisture-proof and heat-insulated, and the relative humidity of the air in the warehouse is kept at about 50%.

The above content refers to People's Daily Online-These two things about tea, do you know?

The above content refers to Encyclopedia-Tieguanyin.

What is the shelf life of Tieguanyin?

Most of the Tieguanyin is lightly fermented, that is, the common fragrant Tieguanyin, so the retention period will not be too long, under the condition of ventilation and light, dry and odorless, spring tea is generally about three months, it is best to drink it within one to two months, and autumn tea is slightly longer. If it is stored at minus 15 degrees Celsius in a vacuum, the shelf life can be as long as 18 months, but it should be drunk as soon as possible when it is brought to room temperature. The storage time of Tieguanyin that has been roasted at high temperature will be extended for a long time, and it can even be stored for more than ten or twenty years, and it can be stored as old tea before drinking.

In Fujian folk, there is a tradition of putting tea in grapefruit peel to store it into old tea, and finally brewing the grapefruit peel and Tieguanyin old tea together to make herbal tea to clear heat and relieve heat. How long is the shelf life of Tieguanyin, now do you understand? To put it simply, the shelf life of lightly fermented Tieguanyin is relatively short, and the flavor will be lost after aging.

The baked Tieguanyin has a much longer storage time and can be aged. If you want to extend the shelf life of lightly fermented Tieguanyin, the most important thing is to store it in a dry, dark and cool place.

Tieguanyin tea leaves can't be drunk after being left for a long time! The shelf life of Tieguanyin tea is 36 months, Tieguanyin is fermented tea, the tea needs to be packed into an aluminum foil bag when preserved, and then the vacuum seal or direct sealing is removed, and then put into the iron can and cover it, placed in a cool place, or put it in the refrigerator for storage, it can be stored for 3 years, and it is necessary to pay attention to drying, sunscreen, moisture-proof, sealing, and odor-proof when preserving.

Normally, it is okay, depending on where to put it for how long, of course, Tieguanyin is a seasonal tea, and there is no taste of fresh tea after a long time.

The preservation time and method of Tieguanyin of different qualities are different.

If it is properly stored, it can still be drunk after 8 years.

Tieguanyin. Whether you can drink it after a long time depends on the shelf life of Tieguanyin.

If it is not past the expiration date, then it can be drunk, and if it is exceeded, then it cannot be drunk. There is no saying of a maximum of a few years, it depends on the shelf life of Tieguanyin.

The shelf life of Tieguanyin

1. It has not exceeded the expiration date: If Tieguanyin has been left for a long time, it has not exceeded the expiration date, there is no mold, there is no discoloration, and you can smell a faint fragrance, then you can still drink it in this case.

2. If the expiration date is exceeded: If Tieguanyin has been left for a long time and taken out to see that it has exceeded the expiration date, it can also be obvious that there is mold.

The decomposition or oxidation of the chromogenic substances in the tea leaves causes Tieguanyin to change color, and it smells obvious pungent taste, so you can't drink it in this case, and you should throw it away in time.

Note that Tieguanyin must be stored in a dry and low-temperature environment, it is recommended to place it in a quick-freezer box for freshness, if you drink it quickly, you generally only need to place it in a cool place, away from light.

First, the shelf life of Tieguanyin.

1. After light fermentation, the shelf life is generally about three months.

2. After being roasted at high temperature, it can be put for ten or twenty years, and it can also be put into old tea.

3. If the vacuum compression packaging is stored in the environment of -5, the shelf life is two years.

Second, whether Tieguanyin can be drunk for a long time.

After the time, as long as it does not become moldy, after proper baking, the taste will be worse, and the taste and color will be much worse than when I first bought it. Tea is a dry food with a long shelf life; However, the shape, color, aroma and taste of tea will change over time. Internal factors of tea quality change:

The water content of the tea itself is there; External factors of tea quality change: light, temperature, oxygen, peculiar smell.

Third, the effect of Tieguanyin.

1. Refresh your mind.

Tieguanyin can refresh the mind and think, and its function is mainly in the caffeine in the tea. Caffeine has the functions of stimulating the central nervous system, enhancing thinking, and improving efficiency. Therefore, after drinking tea, it can break sleep, refresh the mind, remove annoyance, relieve tiredness, clear the mind, enhance thinking, and can significantly improve the oral defense ability and mathematical thinking response.

At the same time, because Tieguanyin contains polyphenols and other compounds, it offsets the adverse effects of pure caffeine on the human body.

2. Inhibit cardiovascular diseases.

The tea polyphenols contained in Tieguanyin play an important role in human fat metabolism. The human body has high cholesterol and triglycerides and other cardiovascular diseases, such as fat deposition on the inner wall of blood vessels, and the formation of atheromorphic plaques after the proliferation of vascular smooth muscle cells.

Tea polyphenols, especially catechins ECG and EGC and their oxidation products theaflavin, help to inhibit this plaque hyperplasia, so that the formation of blood clotting viscosity is enhanced, fibrinogen is reduced, and blood coagulation becomes clear, thereby inhibiting atherosclerosis.

3. Beauty** anti-aging.

Tieguanyin's crude catechin combination has strong antioxidant activity, which can eliminate reactive oxygen species molecules in cells, so as to protect the human body from aging diseases. The ratio of manganese, iron, fluoride, potassium and sodium content in Anxi Tieguanyin is higher than that of other teas, among which the high fluoride content ranks first among all teas, and has a significant effect on the prevention and treatment of dental caries and senile osteoporosis.

Whether you can drink it or not depends on the environment in which the tea is stored. In the case of good sealing, as long as the temperature and humidity are suitable, the tea can be stored for a long time, generally.

One or two years is no problem. Tea is the most taboo to absorb peculiar smells when preserving, and is also afraid of oxidation. Therefore, the requirements for the conditions for storing tea are very strict.

Tieguanyin tea is relatively dry, generally not easy to spoil, if the storage conditions are appropriate, to avoid moisture, can be stored for 1 year, you can smell it, if there is no peculiar smell or you can continue to soak in water to drink.

Tieguanyin is not suitable for a long time, because it belongs to green tea, that is, semi-fermented tea, the degree of fermentation is not high, and its aroma mainly comes from fermentation, so the long-term Tieguanyin aroma will slowly dissipate and become chicken ribs.

1. After light fermentation, the shelf life is generally about three months.

2. After being roasted at high temperature, it can be put for ten or twenty years, and it can also be put into old tea.

3. If the vacuum compression packaging is stored in -5, the shelf life is two years.

4. If there is no mildew in Tieguanyin, you can drink it, but the taste is not good.

1. After light alcohol, the shelf life is generally about three months; 2. After being baked by high-temperature cakes, it can be placed for ten or twenty years, and can also be put into aged tea; 3. If the vacuum pump shrinks the packaging, if it is stored in -5, the storage period is 2 years.

Second, if the Tieguanyin tea leaves that have been long for a long time do not appear moldy, they can be drunk, but the taste is gone. 3. Tieguanyin efficacy 1, with flavonoids, with sterilization and detoxification effects, can relieve greasy effects; 2. With manganese, iron, fluorine, potassium and sodium, it has a remarkable effect on the prevention of dental caries and osteoporosis in the elderly; 3. Vitamins, caffeine, carbohydrates, minerals, theanine, etc., have an effect on brain development and improve IQ. During the storage period of six months, the temperature of the refrigerator room is maintained at 0 5 degrees Celsius and is most economical and reasonable; If the storage period is more than half a year, refrigeration (-10 to -18 degrees Celsius) is preferred.

It is recommended not to drink it.

Tieguanyin is generally put for a year, to the second year is the old tea, the old tea is not good, the taste is not good, but there will be nothing if you don't drink it, the general tea such as green tea, black tea oolong tea, white tea, yellow tea are all a year, only Pu'er and some black tea can be put for many years, and the older the better, the more valuable.

The preservation time and method of Tieguanyin of different qualities are different.

The shelf life of tea depends on the type of tea and the storage environment, Tieguanyin is a semi-fermented tea, the shelf life is generally 1-2 years, it is recommended to store it in a dry and sealed environment, and the tea leaves with a long storage time can be brewed first to take a small amount of brew to observe whether they can continue to drink.

Depending on the degree of sealing, it is generally about a year, and the taste will change after a long time, so it is not recommended to drink it.

I hope you will adopt.

For about a year, it is best to be half a year, although it is not bad after half a year, but the taste, texture, and color are not as good as the new tea.

Tea leaves are best kept in the refrigerator so that they can be stored for a longer time.

(1) Light fermentation of Tieguanyin (fragrance type): The shelf life at room temperature is generally only two or three months, the shelf life of spring tea is about 3 months, and the shelf life of autumn tea is slightly longer. Vacuum-sealed, refrigerated for 1-2 years.

The storage period is less than six months, and the refrigeration temperature is the most economical and effective to maintain 0 5 degrees Celsius; If the storage period is more than half a year, it is better to freeze (-10 to -18 degrees Celsius). Even if it is dried and compressed in packaging, it should not be stored for too long, and the freshness can be tasted best within a year.

2) Moderately fermented Tieguanyin (strong fragrance type): high degree of baking, the inner quality of tea is not easy to be oxidized, and it is stored for a longer time at room temperature, but it is better to refrigerate, especially when long-term storage is required.

3) Aged Tieguanyin: After special baking cellar, it can be stored at room temperature for a long time, and it is divided into five years, ten years, fifteen years, eighteen years, twenty-eight years, etc. according to different quality and production methods.

4) Black tea Tieguanyin: It is a fully fermented black tea, the shelf life of bulk is 18 months, the shelf life of bagged is 24 months, the black tea packaged in paper bags can be stored for about two years, and the black tea packaged in canned or aluminum foil can be stored for about three years.

It is best not to drink expired tea leaves, so as not to affect your health. The shelf life of the strong aroma Tieguanyin is not particularly long, so try to drink it within the expiration date when drinking, so as to taste its pure taste.

There are five reasons that affect the quality of tea: moisture, temperature, air, light, and odor.

Generally, low temperature and sealed vacuum are required, so that the color and fragrance of Tieguanyin can be guaranteed in a short period of time, but in the actual preservation, although the tea is not stored for a long time, the color and fragrance are not as good as the beginning of brewing, the reason is that the degree of drying after tea fermentation.