Green tea for 1 year and white tea for 15 years. What is the shelf life of tea?

丨 This article is original by Xiao Chen tea

丨 First of the People's No.: Xiao Chen Tea

丨 Author: Village Grandma Chen

"1"

The Red Mansion has not finished, and there is no ending.

It is like a broken arm Venus in the Louvre. The manuscript may be lost, or the author deliberately leave suspense.

In short, in the eighth 20th round, the Dream of the Red Mansion, which belongs to Cao Xueqin, ended.

Forty times later, it belongs to the sequel.

That's why Zhang Ailing said that there are three major regrets in life, one of them is hate the red building.

The two heroines in Cao, the two heroines in Cao, have a fate with Baoyu.

But their endings, confusing, have no accurate and uniform answers so far.

Regarding Daiyu, some people said that she died by himself, and some people said that she committed suicide by the lake, and some people said that she died of tears ...

Thinking of his previous life was the bead fairy, the reincarnation of the next life was to report the grace and the servant of the servant of Shen Ying.

Therefore, Sister Lin was so sad all day.

Guess that, according to the normal development, Dai Yu's tears were exhausted, and the grace was over, so she continued to return her to her fairy.

As for the ending of Baodi, there are many sayings.

For example, I died, remarried, and died early. It is certain that after Baoyu's cliffs played as monks, Baodi was like Li Yan.

Every day, until the red face is old, the two are white.

It can be seen that whether it is Daiyu, who is still in tears in the next life, or the abandoned Baodi who has been abandoned after marriage, it reveals tragedy.

Hongyan Shengren is so thin, Mo resents the spring breeze to be self -proclaimed.

"2"

Different personalities are doomed to different endings.

In the tea circle, although they are all tea, they also have different development.

Just like tea friendship: "Why not fermented green tea, the shelf life is only 1 year, but the micro -fermented white tea can be stored for a long time, more than 15 years?"

From the perspective of some newcomers, the gap between green tea and white tea is not particularly large.

Moreover, the degree of fermentation between the two is not very high.

Then, there is such a big gap in the shelf life, in the final analysis, it is mainly related to the process.

Green tea is a non -fermented tea, and in the processing process, a very important step is to kill green.

"Green" refers to fresh leaves.

The killing of youth is to quickly destroy the activity of polyphenol oxidase by high temperature and provide a material basis for the taste of tea.

You know, almost anything will be oxidized, and tea is inevitable.

Therefore, green tea should be used to kill the matter, so that the substances in the tea can be retained instantly, and at the same time, many substances are converted into aroma substances, and some low -boiled green grass gas is volatile.

To put it plainly, there is a certain similarities when you cook it peacefully, and use hot water to make dishes.

Then again, the main role of polyphenol oxidase is to "eat" tea polyphenols.

When its activity is destroyed, it means that the tea polyphenols in green tea will not change much in the future.

How much is when it is done, and after a period of time, how much is it.

Therefore, even if green tea is stored for a long time, the oxidation reaction that it can occur is very limited.

Friends who like to drink green tea know that its shelf life is short.

Because it is easily affected by factors such as external light, high temperature, and bad smell, it will be yellowed by oxidation and the freshness will gradually decrease.

Therefore, the green tea of ​​that year is best to finish drinking.

If the indoor temperature is too high, you can also put it in the refrigerator and save it at low temperature.

Use the air -conditioning in the refrigerator, as well as appropriate water to maintain the freshness and freshness of green tea.

"3"

The processing of white tea is very different from green tea.

If the essence of green tea is to kill green, then white tea does not have this process at all.

As the six major tea categories, the most simple craftsmanship, white tea has always been fresh and refined.

Don't stir -fry or rub, nor do you kill you.

In this case, it means that the activity of polyphenol oxidase in the white tea body has been completely retained.

Relying on the activity of enzymes, material transformation will occur inside the chips.

Because of this, there is always a word in the tea circle, called "One year tea, three -year medicine, seven -year treasure".

It's not just good to say, but it is true.

According to scholars such as Zhou Qiongqiong, the study in the papers in "The Main Biochemical Composition of White Tea in Different Years" proves that the content of the inner content of white tea will continue to be virtuous over time.

Taking white peony as an example, they found that tea polyphenols and caffeine substances decreased year by year.

Catemaine also showed a downward trend, but it was very slow and could not feel it.

This is why, good quality white tea, white tea with high catexine content, still drinks fresh after three or five years.

The most worth mentioning is that the content of flavonoids is growing steadily.

Flavonoids are an antioxidant substance that increases with the year of storage.

When they emerge in old white tea, it means that material transformation is smooth.

Drinking more old white tea is more friendly to middle -aged and elderly people.

Therefore, white tea is a tea that is really suitable for all ages.

"4"

Finally, let's look back at the questions from the tea friends.

"Why is the shelf life of not fermented green tea, but the micro -fermented white tea can be stored for a long time, for more than 15 years?"

Obviously, the other party combined the shelf life of the tea with its fermentation.

In fact, whether a tea can be stored for a long time, how long it can be put is related to the process and dryness. At present, the tea circle recognized in the tea circle can be stored for a long time, which is white and black tea.

One is micro -fermentation, and the other is heavy fermentation and cannot be compared.

Compared with the craftsmanship of the two, it seems that they can't find the same place.

The white tea process is simple, there is no pile, no severe fermentation, drying after withering, it is ready.

Such a simple and simple method can maintain the original flavor to the greatest extent.

In addition, there are regulations in the national standard of white tea that the water content of finished tea should not be higher than 8.5%, which provides an advantage for the long -term storage of white tea.

You know, if you want to deteriorate, you must have temperature and humidity.

If there is only high temperature, tea is still dry, and there is no extra water vapor, which is also difficult to mold.

Under high temperature and high humidity, white tea will be too fermented and mildew.

Therefore, it is enough to dry, which is the top priority that white tea can be stored for a long time.

In the craftsmanship of black tea, Wakaba is a unique fermentation process.

Simply put, sprinkle water on the green hair tea, and then pile them into a certain height, cover it with anesthesia, and keep the tea from fermenting under the action of damp heat, and finally spread out to dry.

In the process, it can promote the transformation of some fungal substances and effectively cause changes in flavor.

In addition, these fungus substances will continue to react with tea in the future to generate richer substances.

Although white tea and black tea are different, the principle of material transformation is different.

But the same thing is that they are changing rapidly and constantly bring us surprise.

Just like a person who is constantly changing, we look at it with fresh appearance and appear in front of everyone.

"5"

The most important factor in determining a tea preservation period is craftsmanship.

The processing methods of the six major tea have their own skills, each with their own color.

After the killing green tea, you can have the green leaves, fresh and refreshing charm.

The white tea that does not kill the green has Chunhe, soft and delicate soup, with rich aroma and rich layers.

But the shelf life must be determined as depending on the situation.

White tea can be stored as old white tea, which makes people feel its unique, mellow and plump under the years.

Although the shelf life of green tea is short, it cannot be stored as old tea, but the freshness and freshness it brings us, like the best beauty of Jiangnan spring.

In addition, it depends on the dryness of a tea leaf to meet the standard.

The water content is too high, and the time is long, and the tea is inevitable.

In short, friends who love tea must be loved by radish and green vegetables.

You don't have to force green tea to save old tea. Drinking it fresh is the best tenderness for it.

I really want to drink old tea and find white tea or black tea.

It is not easy to create. If you think this article is helpful to you, please like it.

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Chen Chen, the aunt Chen of Xiao Chen, the columnist, the original innovative media of the tea industry "Xiao Chen Tea" the main pen, and has published the Bai Tea monograph "White Tea Taste". From 2016 to 2020, more than 4,000 original articles have been written.

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