Why are the tea bags not transparent? What s the saying??

Mainly to avoid light. Light, mainly ultraviolet rays, can cause yellowing and deterioration of tea leaves. This opaque packaging material has aluminized materials inside, which is good for the barrier of oxygen and water vapor, and is conducive to prolonging the shelf life of tea.

These are too important for tea. Therefore, the tea is generally made opaque, except for a few low-end ones, which are packaged locally, and the locals drink them in a few months, with transparent windows.

Tea leaves are to be kept away from light. Taiming Daguan provides tea preservation methods, pay attention to the following four points: (1) Keep it dry.

The optimal water content of tea storage is 3%, and the general water content of tea leaves is not easy to deteriorate if it can be kept at 3%-5%. It can be identified by touch, such as grabbing a small pinch of tea leaves and twisting them with your fingers, if you can rub them into powder, it means that the dryness is good. Special teas are different, such as Pu'er tea, which requires a higher water content in storage.

2) Suitable temperature, some tea leaves need to be refrigerated and stored at a suitable temperature of 0-5 degrees. (3) Avoid light, use opaque materials for packaging and storage, which can prevent quality deterioration caused by chemical reactions. (4) Prevent odors.

The polymer compounds in tea are easy to adsorb odors, so contact between tea leaves and odorous substances should be strictly prevented, and storage containers must also be kept clean and odorless.

It is to prevent the quality of tea from being exposed to sunlight and the entry of air.

Summary. Kiss, the preservation method of tea is 1, clay pot storage, choose a dry clay pot with good sealing, put the tea into it, reduce the air in the jar, and then seal the jar, and finally put it in a cool and ventilated place, pay attention to moisture-proof 2, low temperature storage, tea is easy to get wet, so if you want to put the tea into the refrigerator, you must do a good job of sealing measures 3, bag method, use a good sealing aluminum foil bag, and then put the sealed tea in a cool and ventilated place

Does it matter if the tea packaging bag is not sealed well?

The tea that I just bought, the packaging bag is not sealed, and if I plan to give a gift, will it have an impact.

<> kiss is happy to answer for you, the tea packaging bag is not sealed well has an impact If the sealing of the packaging bag is not good, it will affect the smell of tea, be careful that the smell of tea will run, the effect of tea will be greatly lost, and the tea may become wet and other microorganisms enter

Kiss, the preservation method of tea is 1, clay pot storage, choose a dry clay pot with good sealing, put the tea into it, reduce the air in the jar, and then seal the jar, and finally put it in a cool and ventilated place, pay attention to moisture-proof 2, low temperature storage, tea is easy to get wet, so if you want to put the tea into the refrigerator, you must do a good job of sealing measures 3, bag method, use a good sealing aluminum foil bag, and then put the sealed tea in a cool and ventilated place

Kiss, if you don't seal it well, it will have a certain impact

Experts from Fengxing Packaging Machinery Factory explained that the main role of the vacuum packaging machine is to remove oxygen, moisture, high temperature fermentation, etc., in order to prevent tea from deteriorating. Its principle is also relatively simple, which is conducive to the vacuum packaging machine to remove the air in the packaging bag, and then seal it, so that the tea is in a vacuum state and absolutely isolated from the outside world.

However, there are some teas that are not allowed to be vacuum-packed, such as crisp and fragile tea leaves, tea leaves that are easy to agglomerate, tea leaves that are easy to deform, and tea leaves with sharp edges and corners or high hardness that will puncture the packaging bag. For example, Pu'er in Yunnan is generally made into tea cakes or tea bricks, and the surface is covered with a layer of paper for simple packaging.

However, in order to ensure that the quality and taste of tea are pure and natural, not affected by external conditions, and in order to improve the image of tea and enhance the value of goods, it is the general trend to carry out exquisite packaging of tea. These teas that are not suitable for vacuum packaging, such as green tea, Longjing and other tea that are easy to squeeze and deform, are not suitable for vacuum packaging, and can be packed with nitrogen-filled vacuum. Brick form packagingTea cake form packagingPaper bag West Lake Longjing vacuum inflatable packaging Tea Vacuum inflatable packaging is a mixture of nitrogen, carbon dioxide and other single gases or two or three gases after vacuum.

Nitrogen is an inert gas, with a density close to air, but it only plays a filling role, so that the inside of the bag maintains positive pressure and protects the tea leaves from being crushed by atmospheric pressure. Carbon dioxide can put the tea leaves to sleep and maintain the quality of the tea.

The above content hopes to help friends who are buying tea vacuum packaging machines.

By chance, when buying tea, I found a phenomenon that some tea leaves are vacuum-packed, and some are not. I also specially asked**, some tea leaves that are not vacuum-packed are also more expensive than packaged ones. I asked a few varieties, and basically ruled out the influence of ** factors.

I went to understand some of the contents of vacuum packaging of tea, and found that the tea leaves that are generally vacuum-packed are Tieguanyin, because Tieguanyin is sensitive to temperature and air, and if there is no vacuum packaging, it is easy to change the taste when stored.

Tea vacuum packaging is mainly moisture-proof, high-temperature fermentation, etc. Use a vacuum packaging machine to remove the air in the packaging bag and isolate it from the outside world to prevent the tea from deteriorating. However, there are also teas that are not suitable for vacuum packaging, such as Yunnan Pu'er tea, which is crunchy, fragile and easy to agglomerate, and is generally made into tea bricks or tea cakes, and covered with a layer of paper for recommended packaging.

Friends who know more about tea should see more.

However, in order to ensure the quality and taste of tea, but also to improve the brand image of tea, enhance the value of goods, the exquisite packaging of tea is indispensable, especially the lightly fermented tea, more need for good packaging and preservation. For those teas that are not suitable for vacuum packaging, such as Longjing and green tea, they can be packed with nitrogen to achieve the purpose of preservation.