How to tell if tea is moldy, how to tell if tea is moldy?

To identify whether the tea is mildew, you can put the tea in your hand, look at it in the light or smell it lightly, if there is a musty smell, it is moldy. The white mildew spots can generally be seen on the surface of the damp and moldy tea, especially when brewing, the smell is more obvious, and the tea leaves have an astringent feeling, without the original aroma.

Tea mold is because it is contaminated by penicillium, aspergillus and other microorganisms, and drinking it will cause certain damage to the human body, such as dizziness, diarrhea, and even necrosis of vital organs. Tea leaves should be kept in a dry place to prevent mildew.

Tea mildew generally refers to the growth of white hairs in the tea leaves, which smell musty, and in severe cases, they will rot and agglomerate, and green hairs will grow on them. Pu-erh tea will also have black mildew.

Tea, like any other food, has an expiration date. Under the premise of scientific storage, the shelf life of tea varies from about two years. Tea leaves are left for a long time, especially if they are not stored properly, and they are prone to mold. Like summer, it is usually a period of high incidence of tea mildew.

This is because it is contaminated with Penicillium and Aspergillus, which can produce aflatoxins (classified as a Group 1 carcinogen by the World Health Organization's Agency for Research on Cancer, which is a highly toxic substance). Aflatoxins are resistant to high temperatures and cannot be eliminated by high-temperature frying. Its harm lies in the destructive effect on human and animal liver tissues, and in severe cases, it can lead to liver cancer and even death.

Two tips for cleaning up moldy tea leaves.

1. Use a semi-wet and semi-dry cloth every day to carefully wipe off the mold on the surface and put it in a ventilated and dry place.

2. Or use a soft brush to brush off the mold on the surface of the tea, and then put it in a cool and ventilated place, occasionally tossing a few times, no need to do other treatment, but pay attention to avoid direct sunlight.

The above method is more suitable for precious tea, but it is more troublesome to clean up, from the perspective of health, leaf deterioration not only affects the taste, but is more likely to harm health.

It is better not to drink the moldy tea leaves, drinking the moldy tea may cause dizziness, diarrhea and other food poisoning symptoms, and in severe cases, it will cause kidney function lesions, and even have the risk of causing cancer. No matter what kind of tea it is, once it is moldy, it cannot be drunk.

1. Smell the smell.

To distinguish the new and the old, good and bad, the first thing is to smell the smell of tea, the tea that has not deteriorated will have a faint tea fragrance, and the moldy tea will have a musty smell.

2. Look at the color.

The normal color of the tea is tender green or dark green, fresh and lively, if there are black spots, gray and white and other similar mildew spots, it is already moldy.

3. Look at the appearance.

All kinds of tea have specific shape characteristics, and the leaves that are not moldy are tightly knotted and bright.

Special attention: tea mold can no longer be drunk, tea mold is because of penicillium, Aspergillus pollution, moldy tea brewed tea soup not only has no tea fragrance, and the human body also has a certain damage to the body, such as dizziness, diarrhea, heavy can cause necrosis of vital organs.

<>1. The tea leaves are moldy and gray-white, which can refer to the smile and smell the smell of mildew, and there is dust in the sun.

2. Twist the tea leaves with your fingers, if you can twist the tea leaves into powder, it indicates that the tea leaves are dry, if the twist is not broken, it means that the humidity is high, and it may even be moldy, and it may contain mycin.

3. You can take a small amount but brew it with boiling water, which is darker than the original color, and has a peculiar smell, not fragrant enough, and it is estimated that the potato is moldy.

Tea leaves are susceptible to mildew when stored improperly.

Only when the quality of the product is under the right storage conditions, the quality will be transformed in a better direction. If the quality is not up to standard at first, or if it is not stored properly, the quality will not be good no matter how long it is stored.

The storage of tea is very particular, high temperature, humid environment refers to auspicious is easy to cause mildew, so if you want to taste the old fragrance of tea, it should be stored in 20 30, humidity less than 75%, ventilated and cool environment, and to isolate the food with peculiar smell to prevent tea from absorbing flavor.