Can black tea still be drunk after six years in an iron box?

Every time I go to a tea shop or tea house to buy tea, I often see that there is black tea for sale, and the amount of black tea is relatively large, although it is not very expensive, it can be stored for a long time, and the shelf life of each tea is generally different.

Tea shelf life.

Green tea. The shelf life of green tea is generally about one year at room temperature. Because green tea has not been fermented, the preservation requirements are higher than those of other teas, and the shelf life is the shortest. The shelf life can also be extended if stored properly.

Black tea. Generally, the shelf life of black tea is relatively short, generally 1 year, the shelf life of black tea picked in the second and autumn is 1-2 years, and the shelf life of Ceylon black tea is relatively long, and there are more than two years. The shelf life of bulk black tea is generally 18 months, the shelf life of bagged black tea is 24 months, black tea packaged in canned or aluminum foil paper can be stored for about three years, and black tea packaged in paper bags can be stored for about two years.

Black tea. It is generally believed that brick tea is stored for 10 to 15 years, 10 to 15 years for 100 taels of tea, and 5 to 10 years for loose tea.

Pu'er tea is divided into two kinds: raw tea and ripe tea, generally speaking, the shelf life of raw tea is about 5 years, and the more ripe tea is aged after special fermentation, the more fragrant it is, and the shelf life of tea is more than 15 years.

White tea. The general shelf life of tea is two years, because after the shelf life of two years, even if it is well preserved, the aroma of tea has been lost, but white tea is different, it is the same as raw Pu'er, the longer the storage year, the more mellow and fragrant the tea taste, known as "one year of tea, three years of medicine, seven years of treasure" said, generally five or six years of white tea can be regarded as old white tea, more than ten or twenty years of old white tea has been very rare. The longer the white tea is stored, the higher its medicinal value, so the old white tea is extremely collectible.

White tea is said to be as old as possible, of course, it is also under the premise of good preservation, white tea is generally sealed and preserved, otherwise it will lose moisture or moisture. Only by preserving it can we achieve the saying of one year of tea, three years of medicine, and seven years of treasure.

Yellow tea. Yellow tea is a fermented tea, and the production of yellow tea is similar to green tea, but the difference is that there is an additional stuffing process. Therefore, yellow tea, like green tea, has a retention period of only about one year.

How long black tea can be stored also has a relationship with how it is packaged. Generally speaking: about 18 months in bulk; about 24 months in bags; It can be canned or packed in aluminum foil for about 36 months.

The black tea has expired, and as long as it is not moldy, you can still continue to drink it, but it will not taste good at the beginning. The above gives a range of shelf life according to the packaging method for your reference, but if there is a manufacturer that prints the shelf life of black tea on the packaging shell, the shelf life given by the manufacturer shall prevail.

However, no matter how long the shelf life is, it is recommended that you drink it within half a year to a year after opening, because the quality and taste of black tea are the best at that time.

If there is no problem with saving, you can do it.

Black tea is a fully fermented tea, unlike green tea, which is more time-sensitive, but it will not be as mellow and fragrant as ripe pu'er, and it is generally about the same as drinking it within one to two years.

Generally, the shelf life of black tea is two years, and the time for bulk is shorter, because too long will affect the flavor, but if it is well preserved, dry and light-proof, cool, and has been filled and sealed, it can also be drunk for more than three years, but you have to take a look for yourself, whether there is mildew, whether there is moisture, whether there are insects, etc., if there are these problems, then you must not drink.

Black tea is left for three years and is not drunk again, because no matter what tea has a term, black tea that has been put for 3 years has expired, and the general tea period is between 1 year and 1 and a half years.

Generally speaking, the shelf life of black tea is around 18 months, and it can be stored for 1-2 years in a good environment and when stored properly. Therefore, black tea is not recommended to be consumed after 10 years. Because the substances of black tea that have been left for 10 years will deteriorate with time and oxidation reactions, and may become damp, moldy, and grow.

At the same time, 10-year-old black tea belongs to expired tea. Some people with weak spleen and stomach are prone to abdominal pain, diarrhea and other symptoms after drinking, which is not conducive to physical health. Therefore, it is recommended to drink it before the expiration date to avoid expiration and avoid the impact of accidental ingestion on health.

At the same time, there are some precautions for drinking black tea. 1. The temperature of tea should not be too high, so as not to cause damage to the oral mucosa. Secondly, it is not advisable to drink black tea with too high concentration, so as not to be hyperactive and affect sleep.

In addition, it is not advisable to drink tea on an empty stomach or overnight tea, because overnight tea may be mixed with bacteria and microorganisms, which can easily cause gastrointestinal discomfort, such as abdominal pain.

Black tea that has been stored for ten years cannot be drunk with wax.

Black tea is a fully fermented tea, its shelf life is its best drinking period, expired black tea its soup color, taste, aroma and other qualities will plummet from the peak state, the more the grinding of the skin is worse, until there is no drinking value at all.

Features of black tea:

Black tea has its own shelf life, and it cannot be stored forever even if the storage environment is completely consistent. Generally speaking, the shelf life of black tea is 24 months, and the maximum should not exceed 3 years.

Because in this process, even if there is no external environmental impact, the black tea itself will undergo some subtle changes, which are innate, so even if the tea leaves are not deteriorated, but this kind of tea blind spike leaves also belong to expired tea, or it is not suitable to continue brewing, which requires everyone to figure out the stakes behind it.

How to preserve black tea: Black tea has similarities with wine, but there are also many differences. First of all, both are fermented products, but black tea should not be stored for too long, and the more wine is stored, the more fragrant it is.

In the process of preservation, if black tea encounters air, it will combine with oxygen, so that the tea leaves will oxidize, which will lead to damage to the quality of the tea itself.

When black tea is well preserved, it will also oxidize itself, so the older it is, the more unsatisfactory the taste of the tea will be, and in the end it may no longer taste tea. It is not recommended to continue brewing black tea that has been preserved for a long time.

It must not be able to drink, at this time it may affect your health, if you drink it at that time, it will also affect your stomach and digestion.

I think of course not, because black tea may spoil after a long time, and it is not good for your health after drinking it.

I think of course you can drink it, and the longer you leave it out, the fresher it tastes.

Black tea can no longer be drunk after seven years.

The shelf life of black tea is generally 1-2 years, which is not suitable for long-term storage.

Black tea that has been left for seven years is far beyond its expiration date and is not suitable for further drinking. The shelf life of black tea is generally 1-2 years, and even if black tea is stored in a good environment with high-quality raw materials and rigorous technology, the shelf life is only 3-5 years.

Black tea is not suitable for long-term storage, and it is not always better to leave it for as long as possible. Because in the process of processing and production, the black tea has been fermented, and there is no need to continue fermentation in the later storage process, there is no problem of later transformation, and it can be drunk directly after the production is completed.

Once the tea is expired, it is easy to deteriorate, whether the tea deteriorates mainly depends on these aspects, including whether there is mold, whether there is an old taste, whether the soup color has darkened, whether the taste concentration and astringency, whether the freshness has decreased, etc., if there is any, you can't drink it.

Although black tea also belongs to the tea category with a higher degree of fermentation, it does not last for one or two decades like Pu'er and black tea.

The aroma of flowers and fruits, honey and sweet aroma is one of the main characteristics of black tea, if it is stored for too long, it may still be able to be eaten, but the aromatic substances have been transformed with the years, getting weaker and weaker or even completely gone, and the drinking experience will inevitably be greatly reduced.