Tea leaves with yellow spots, can you still drink them?

Hello, did you have any yellow dots when you first bought it? There are two possibilities, if your tea is ripe, that may be the part of the bud head, because after fermentation, the branches and leaves turn reddish-brown, and the bud head will generally only turn yellow, but in this case, you should have it when you buy it; The second is moldy, mildew, you can carefully smell whether there is a musty smell, or grab some bubbles to try it, if it is indeed moldy, the soup will be very turbid, and it must be a very unpleasant taste to drink. If this is the case, you can't drink it, and you may see some people teaching you some ways to deal with it, but although it won't taste musty after treatment, as a food, it is not good for the body to spoil.

It is true that Pu-erh tea becomes more fragrant the older it ages, but only if it is stored in a good environment. In general, it is ventilated, protected from light, moisture, and odors. If possible, it is indeed a good choice to buy purple clay jars to store pu'er.

In fact, looking at the monitoring of food safety in our country in recent years, we have to admit that it is increasing, and this intensity also involves the health and safety of tea. But there are still some people who find small yellow spots on the tea leaves when they buy Pu'er tea, what is this? Let's take a brief look.

There are actually two conditions of this small yellow spot, one is the "golden flower" that people often call in their mouths, and the scientific name is "Scattered Coronoides", although it is also a fungus, but it is a beneficial fungus, and people will not harm the body after eating. Another possibility of small yellow dots is Aspergillus flavus. Contrary to "Golden Flower", Aspergillus flavus is a highly toxic poison, which will cause great harm to the human body after people eat it by mistake, and even directly lead to death.

So how should these two fungi be distinguished? From a professional point of view, we can observe the morphological difference between the two with the help of a microscope, the spherical shape is "golden flower", and the dandelion-shaped is Aspergillus flavus. In addition, the color of the two is also different, the "golden flower" is mostly golden yellow, but Aspergillus flavus has a variety of colors, white, yellow, yellow-green is more common.

But obviously, the identification method with the help of a microscope is not suitable for ordinary people, so how to identify Pu'er tea when we buy it? In fact, the difference between the two can be obtained through our naked eye observation and smell smell.

First of all, the distribution state of Aspergillus flavus on food is generally in pieces, there will be some yellow or gray hyphae, and it will emit odor, when you smell mildew on the tea, it is basically Aspergillus flavus.

On the other hand, "Golden Flower", just like the name people give it, when it is attached to food, it is clustered, although the color is also yellow, but it has no mycelium, and it does not change the taste of the tea, we will not smell the pungent mold smell in the tea, then we can determine that the tea is not attached to Aspergillus flavus.

According to your description, this tea should have deteriorated, so it must not be able to continue drinking, and it is recommended that you don't want to waste it and can be used to boil tea eggs.

Can't drink, tea needs fresh green tea leaves to fry a good tea, once yellow, then wilted and can't be drunk. Hope, thank you!

It's best not to drink it, it may have gone bad.

Tea leaves are yellowing because.

1. Fresh tea leaves: because of the long light time, the anthocyanins accumulate too much, and they appear purple-red; The buds of the tea will be green and yellowish, or the leaf color of special varieties of tea leaves will be yellowish and other reasons.

2. Finished tea: The leaves of the maple tree are also green during the growth period, and they will turn red in autumn; The leaves of poplar trees are also green, and they also turn yellow and wither after falling leaves. This is the life state of the leaves, and the ecological substances inside the leaves change and thus change the color.

The same goes for tea trees, the leaves are green during the growing season. If the changes in ecological substances are artificially controlled, that is, the production process of tea, the leaves of the tea tree will also become different colors, so there is a green leaf bottom for green tea, a reddish-brown leaf bottom for black tea, a red edge on the green leaves of oolong tea, a white tea leaf on the brown bottom, a yellow tea leaf with a slightly green bottom, and a dark brown tea with black tea.

There is a possibility of excessive water or fertilizer, and tea plants are suitable for growing in acidic soils, which require a certain amount of water but the roots cannot breathe if there is too much. Place the plants in a ventilated place and control the amount of water and fertilizer.

The yellowing of the leaves of the tea leaves may be caused by a lack of nutrients. Strengthen water and fertilizer management, pest and disease control, and supplement trace elements.

There are yellow hairs on the tea leaves, which are actually the hairs on the back of the young shoots and young leaves on the new shoots of the tea tree, which are naturally formed after the tea is processed and dried, which is called tea hair. Tea is mainly grown in the lower epidermis of the young buds and leaves of the tea tree, which is rich in theanine, which can improve the freshness of the tea soup.

At the same time, there are a large number of glandular cells in the root of the tea, which contains a large number of aromatic substances, which can enhance the aroma of tea. The higher the tenderness of the tea, the more tea is harmless, and it can be drunk, not a deterioration phenomenon.

Generally, it is better to store tea leaves in the refrigerator and seal them......In addition, it is easy to get damp in the fruit basket, and the yellow hairballs are probably indeed spoiled, even if they are not spoiled, the quality of the tea has deteriorated, so don't drink ......it

It's best not to drink it, because once the tea leaves have hairs or hairballs, it means that it is in a deteriorated state, and it is best not to drink it! Harmful to the body!

It is recommended that you do not drink it, and the hairs may have gone bad. Your grandma still quarrels over tea? What kind of tea do you grow over there? If it's good, we'll buy it!

Your tea may be Longjing, or it may be very ordinary.

If there are some white hairs it is a tender relationship of the tea leaves.

If it is yellow hair or yellow hair balls, it may be stored in a damp place to grow hair, if it is not much, it doesn't matter, wipe it, put it in a ventilated place for a few days, if it really doesn't work, put it in the microwave to dry.

If it is Longjing, there are yellow hairs or yellow hair balls, it can be drunk, and the yellow hairs on the surface of Longjing tea should be fine hairs, and Longjing tea is in the process of frying. Because of the different techniques. In fact, you have to start from two aspects to see the tea, one is to smell the fragrance, and the tea is the tea fragrance, so the fragrance is the key.

If it is an ordinary tea, it is recommended that it is better to brew it as flower fertilizer

1. Adhesion.

Although goldenrod and Aspergillus flavus are both microbial communities, there are differences between different microorganisms. Aspergillus flavus particles are very fine and not tightly attached, and can be blown away in one breath; The golden flower grows on the tea leaves, adheres tightly, is not easy to fall, and will not be washed off even if the tea is quickly moistened.

2. Appearance. Mold is filamentous and distributed in patches, usually distributed on the surface or corner of the tea, mildew and dry storage of tea, mold body dry shrinkage brown, irregular shape. The golden spline book exists in the inside of the bricks and lumps, and even if there is a distribution of tea surfaces, it is clear for the individual, the boundary is clear, and it is dotted and punctified, and it is golden yellow.

3. Color. Goldenrod: Golden-yellow, plump round grains. Aspergillus flavus: Shriveled, irregularly shaped, and brown or yellow-green in color.

4. Smell the smell.

Aspergillus flavus tea is a spoiled tea, the smell is very choking after brewing, and there is a strong mildew atmosphere, while the tea of Changjinhua is more mellow and lubricated, and there is a unique sweet fragrance of Jinhua.

Black tea is moldy and cannot be drunk.

There are a large number of harmful substances in moldy Anhua black tea, and after these harmful substances enter the human body, they will cause disorders of intestinal flora, abdominal pain, diarrhea, nausea, vomiting, dizziness and other physical discomfort symptoms, so moldy Anhua black tea is not recommended to continue to eat.

How do you preserve black tea?

1. Don't bask in the sun.

Tea leaves are easy to react under the direct sunlight, so that the color of the tea leaves changes to a certain extent, and there is a strong sunshine taste when smelling, and the tea fragrance and Wuhuai tea taste are completely absent when drinking. So keep it in a cool place and avoid direct sunlight.

2. Do not store the closed manuscript orange macro realm.

In a closed environment, black tea is easy to have its own bacteria, resulting in the deterioration of black tea, so it is better to store black tea in a ventilated place.

3. Do not put it together with food with odor.

Tea has a certain adsorption effect, and when stored together with food with peculiar smell, it is easy to make the tea taste change, lose its original tea fragrance, and reduce the nutritional value of black tea.

4. Do not put it in a humid place.

There is moisture in the room, which is easy to make the tea moldy, which affects the normal storage of tea and the taste of eating.

There are many reasons for the yellowing of camellia leaves, including maintenance and management factors, as well as physiological factors.

The yellowing or whitening of leaves occurs in summer because the soil is deficient in nutrients such as phosphorus, iron, or sulfur, so it can be cultivated with humus-rich mountain mud by changing the potting soil. From April to September, every 15 days, foliar sprays with 300 times diluted ferrous sulfate solution or trithionphos solution can alleviate the symptoms. Spraying should be done on cloudy days and early morning or late afternoon on sunny days.

If the nitrogen element ** is insufficient, there will also be yellowing of the leaves, you can apply rotted bean cake water, once a month, the ratio of fertilizer to water is 20 to 30. If you add 1 more person. Ferrous sulfate solution in fertilizer solution, the effect is better.

If not watered properly, persistent drought or excessive humidity can also cause yellow leaves. If the potting soil is too wet, the root system of the plant will turn black and rot, causing the leaves to turn yellow and fall off. On hot and sunny days, although the plants are shaded by curtains, the potting soil is often dry, which will also cause the leaves to turn yellow and fall off.

Rubikite spiders or scale insects can also cause yellowing of leaves. Red spiders can be sprayed with 25 dimethoate with water 1000-1500 times, or 50 dimethoate with water 2500 to 3000 times; Scale insects can be sprayed with 5 dimethoate aqueous solution.

Camellia is an evergreen tree, the leaves do not fall off 2-3 years after the formation of new shoots, but in the leaf-changing period of April to May, a small number of old leaves will also turn yellow and fall off, which is a normal phenomenon.