Can you still drink tea leaves from three years ago which includes black tea and green tea ? Why?

1. Several simple ways to identify whether tea leaves are expired.

All parts of our country have their own characteristics of tea, basically, Chinese can be said to have grown up drinking tea. And in our lives to judge whether a tea is expired, we need to see these aspects-

Tea. The first is to look at the appearance. If the appearance of the tea leaves is still dry, then it is generally fine; But if you see white mold spots like mold, it means that this batch of tea has been damp and moldy, so don't drink it.

For example, after years of storage, the color of white tea will change from "yellow" to "dark yellow", and the tea leaves in the last ten years will even turn reddish-brown. But we can't see this color from the tea soup of old white tea, on the contrary, it is transparent and bright. However, it should be noted that if the color of our old tea soup not only becomes darker, but also becomes dark brown and cloudy, without the slightest translucent feeling, such tea is likely to be "spoiled".

Tea. Then you need to touch it. Generally speaking, the optimal water content of tea is about 5%, if it exceeds 10%, the tea is easy to get damp and moldy.

Normal tea leaves are crisp to the touch and easy to break. If the tea leaves are soft when pinched, feel wet, or smell musty, then the tea must have deteriorated and can no longer be drunk.

Tea. And then smell it again. Generally speaking, tea has the taste of tea, of course, different teas may have some differences, and if there is a peculiar smell, it means that the taste is not good.

Tea has a strong adsorption, and if it is put together with something that has a peculiar smell, or if it is not sealed well before being put in the refrigerator, it is easy to carry the flavor. If you smell the obvious smell of mothballs and oily smell of the tea, it is best not to drink such tea.

Finally, make a bubble and watch the tea soup. Some of them must be based on experience, people who drink tea regularly are more likely to taste the taste of tea, some tea leaves are not called spoiled, but they are still drinkable, but there will be a reduction in tea concentration, astringency and freshness, if we don't want to drink this tea, we can also use it to cook tea eggs. Sealed tea kept in the refrigerator is not easily damaged, and if it is in bulk, it is best to drink it as soon as possible, and theoretically its shelf life is 18 months.

Can you still drink tea leaves from three years ago (which includes black tea and green tea)? Why?

Tea is a drink that many Chinese cannot do without in their daily lives, and it is also the second largest drink in the world after water. Seven things to open the door "chai rice bai oil salt sauce vinegar tea", tea is among them, it can be seen that tea is closely related to our lives. So can you still drink tea after three years?

Why? Tea is divided into according to whether it is fermented or not:

Green tea: Green tea is a tea that has not been fermented, it mainly drinks its aroma and the unique grass taste, and the small package of green tea sold in supermarkets will be marked with the expiration date. People who love green tea like to stock up on "Ming Qian tea", which is basically drunk for a year and then purchased after the new tea comes down.

Semi-fermented tea: Our common oolong tea is this kind of tea, including Anxi's Tieguanyin, etc., this kind of tea has a strong aroma after fermentation, and the market is basically sold in vacuum small packaging.

Fermented tea: Black tea is named because of the red color of the tea soup, it is the tea leaves that have been fermented thoroughly, such as common Keemun black tea, Yunnan black tea, etc. Black tea is often brewed in bags of tea, and is available on many vehicles and hotels, and foreigners also prefer to drink black tea.

Fermented tea and semi-fermented tea can be drunk for three years as long as they are stored properly, and some fermented teas will taste stronger the longer they are placed. As long as the black tea is placed properly, then there is no problem to drink it for three years, after all, the tea has been fermented very thoroughly, and the tea itself is particularly dry, so it is not easy to perish. Green tea will change color after a long time, and lose the aromatic flavor that green tea should have.

Many people drink green tea for a "new", the taste of green tea that has been left for a long time will change, and the color of the tea soup will also change, although it can be drunk but the taste is not as delicious as new tea.

Green tea and black tea that have been left for 3 years can be drunk as long as they do not have mildew and odor. However, the basic taste of green tea will change after 3 years, and it will lose the proper taste of green tea. Compared with green tea, the taste of black tea does not change much.

However, in addition to the tea that is conducive to aging, such as black tea and white tea, it is best to drink other varieties of tea in time, after all, the storage conditions are limited by the storage conditions for too long, and there are too many uncertainties in the tea.

I can drink it. Because tea leaves will not expire as long as they are stored properly. And the taste of the tea is very sweet. It makes people drink it and have an endless aftertaste.

Generally, it is not recommended to drink it, because like tea, it has a shelf life, and the shelf life is about 18 months, so if it exceeds this period, it is still edible.

It is drinkable if it is stored for three years in good condition. Because the tea itself is very dry, it is not perishable, especially black tea is a thoroughly fermented tea, and the longer it is placed, the stronger the taste.

Food needs to have a shelf life, especially tea, which needs to follow its process and shelf life. Each of the six major tea categories should have its own shelf life, which of course includes post-fermented Pu-erh tea. Green tea and yellow tea, if stored in the refrigerator, it is generally recommended to drink it within a year; Black tea, oolong tea is generally recommended to drink within three years, Pu'er tea is a post-fermented tea, the ancient tree can be drunk in the same year, if it is put for more than five years can be drunk, the seven-year period is an embarrassing period, it is generally not recommended to drink, other black tea I don't understand very well, basically do not drink.

White tea has risen in the past ten years, and in the early days, white tea was only exported to the white peony grade, which was basically to drink new tea.

It is necessary to see what kind of tea it is, it is a lightly fermented type, such as green tea, yellow tea, oolong tea, the general retention period is 180 days, if it is not stored properly, it has deteriorated. If it is post-fermented, such as black tea, as long as it is stored properly, the quality will get better and better.

As long as it is not moldy, you can drink it.

Tea leaves from three years ago, including black tea and green tea, can still be drunk now. Because the tea leaves are known to be stored for a long time as long as they are placed well, such as the dampness of the sedan fruit may lead to moldy tea.

Three years ago, black tea and green tea were not allowed to drink, because black tea and green tea were expired after three years, and white tea could be stored for more than ten years, if stored under good storage conditions.

I don't think green tea can be drunk, because the shelf life of green tea is very short, because the troublemaker does not have a hair mask in the production process, so it can only be shelved for about 18 months at most, and black tea can continue to be drunk even if it is kept in the shape of three things for a year.

Black tea that is more than three years old cannot be drunk.

Black tea can not be drunk for three years, black tea belongs to fully fermented tea, under normal circumstances, its shelf life is about 2 years, drink within the shelf life, in order to retain the mellow and fragrant flavor of black tea to the greatest extent, and beyond the shelf life of black tea, the flavor and tea quality will begin to decline, and mildew will occur in severe cases, so it is not recommended to drink black tea for three years.

Although the shelf life of black tea is two years, it is generally recommended to drink it in 12 months after production, after exceeding the drinking period, the flavor of black tea will begin to decline, the pectin substance in the tea will gradually dissipate, the viscosity of the tea will be reduced, the pulp will also be weakened, the corresponding oxidation of the endoplasm in the tea will become unstable, and the fragrance of flowers and fruits belonging to the tea will be weakened, and the taste will be light.

The shelf life of the six major types of tea

The production process of the six major types of tea is different, the leaf species and structure of tea are also different, and the shelf life of green tea, yellow tea and other fresh and tender tea leaves is short, one can generally be preserved for one year, and white tea, black tea such tea will undergo later transformation, and the shelf life can be as long as more than ten years.

As one of the six major types of tea, the shelf life of black tea is generally about 2 years, and it is necessary to pay attention to avoid light, high temperature, moisture, ventilation, and odor in daily storage, among which high temperature is the most important thing to avoid for black tea, and proper preservation is the most effective way to extend the shelf life. The earlier you drink it, the more you will appreciate its flavor. It is best to drink the new tea as soon as the heat has faded.

Some of the tea leaves of the years can be drunk.

If the color of the tea leaves does not change after being stored for too long, and there is no peculiar smell, it means that there is no deterioration and can be soaked in water normally. However, if the tea leaves have been stored for too long and there are mildew spots or strong odors, it means that they have deteriorated and cannot continue to soak in water to drink.

In fact, many teas are more and more fragrant, such as Pu'er tea, white tea, etc., so the tea is not necessarily undrinkable after a long time, and whether it can be drunk or not should be determined according to whether it has deteriorated, and cannot be generalized.

Precautions for preserving tea leaves

1. Avoid sunlight. When tea leaves are exposed to strong sunlight, the chlorophyll and alcohols in the tea will be oxidized and decomposed, affecting the quality of the tea and even losing its drinking value.

2. Avoid peculiar smells. All teas, are taboo mixed with odorous things storage, tea contains special substances that cause tea to easily absorb the surrounding odor, if mixed with other products with one of the storage, will cause tea mixed with other flavors can not be removed, so that the tea loses its original fragrance.

The tea leaves were left undrinkable for three or four years.

The shelf life of sealed tea is generally ranging from 12 months to 24 months, and it will be indicated on the packaging bag of the tea that the shelf life of bulk tea is shorter. When buying, try to choose the new tea of the year. Tea has a shelf life, but it is related to the variety of tea, and the shelf life of different teas is different.

Like Yunnan's Pu'er tea, the brick tea of ethnic minorities is better aged, with a shelf life of 10 to 20 years.

Another example is Wuyi rock tea, which is mellow every other year; Hunan black tea, Hubei Fu brick tea, Guangxi Liubao tea, if stored properly, not only will not deteriorate, but can even improve the quality of tea. How long is the shelf life of tea, tea has a shelf life, generally 18 months; Tea leaves are not fresh after the expiration date, and drinking them will have an impact on the body. Ode to defeat.

History

Tea originated in China, and tea was first used as a sacrifice. However, it was used as a vegetable by people in the late Chunshan Zhengqiu period, developed into medicinal use in the middle of the Western Han Dynasty, and developed into a high-grade drink for the court in the late Western Han Dynasty. The earliest remains of artificially planted tea were found at the Tianluo Mountain site in Yuyao, Zhejiang, which has a history of more than 6,000 years.

Tea drinking began in China, the leaves are leathery, oblong or oval, can be brewed directly with boiling water, and are divided into six categories according to the variety and production method, as well as the shape of the product. According to the season, it can be divided into spring tea, summer tea, autumn tea, and winter tea. It is reprocessed into a variety of wool tea or refined tea leaves to form re-added tea, including flower tea, pressed tea, extracted tea, medicinal health tea, tea food, tea-containing beverages, etc.

As long as last year's tea leaves are properly kept, there is no moldy smell and it can be drunk.

People like to drink new tea, this is because most of the new tea taste and color are better than old tea, but from the perspective of nutrition and health care, new tea and last year's old tea, in fact, the color and aroma of tea have a lot to do with the type of tea, processing methods, and its own composition.

After the next year, because of the action of light, heat, water and gas, some acids, esters, alcohols, amino acids and vitamins in the tea are oxidized or condensed, forming other insoluble or volatile compounds, which not only affect the taste, but also discount the nutrition.

Except for several special teas such as Pu'er tea, Tuo tea, Liubao tea, black tea, white tea, etc., as long as they are stored properly, the older they are, the better the quality.

It depends on what kind of tea it is, green tea can still be drunk after it is preserved, and it means that it is not damp, rotten, or mildew. You can pour it out and look at it in the sun. Other teas, such as Pu'er and black tea, are not limited by the age limit, and the older they are, the better.

As for the tea leaves which I stored dryly, it is also usable from last year.

If it's dry, well-preserved, and drinkable, if it's soaked, or damp, it's not okay.

Haha For this problem, it is possible to make tea, don't worry ha,

If you can drink it, the longer the Pu'er is better.

Smell it, it has a musty smell and can't drink it.

If you keep it, you'll be fine, and you can drink it.