Are tea bags harmful? Tea bags: benefits and harm to health. Is it possible to drink expired

02.07.2020

Update: September 2019

Tea bags are very convenient to use on the road or at work. But does a person think about what he drinks, in what quantities and about the dangers of tea bags? Of course, it is believed that fine tea dust can produce a stronger drink than brewing a large leaf of tea.

But unscrupulous manufacturers take advantage of this feature of tea leaves, adding not only tea bags, but also oak, poplar or grass leaves, as well as expired loose leaf tea. Good tea cannot be cheap, so do not buy cheap tea bags.

The addition of flavorings to it most often indicates that under this mask of aroma they are trying to hide cheap, expired tea garbage. Chemical flavors are an order of magnitude cheaper than natural ones, and the addition of pieces of dried fruit (also waste, but from a different production) is done only to indicate them in the composition and attract attention. Moreover, the addition of dyes and preservatives is harmful to the entire body, and excess fluoride content negatively affects the condition of the teeth and skeletal system.

What does expired tea waste mean? Yes, any dried plant, including tea, has a shelf life of no more than 2-3 years, everything seems simple, we look at the date of packaging of the tea and that’s it. But the label indicates the date the tea waste was packed into a bag, and not the time of harvesting the “harvest” from the plantation. At the same time, tea waste could be stored for years in a warehouse or some basement.

Fluoride compounds

Regular use of tea bags is very harmful - this has been proven by employees of the American University of Derby. Studies have shown that cheap tea bags are harmful, it increases the level of fluoride compounds in the body to dangerous concentrations, which is manifested by muscle weakness, joint pain, fusion of the vertebrae, and excess fluoride increases the likelihood of developing kidney disease, reduces the strength of teeth, and even provokes cancer.

The appearance of dark spots on the teeth is the most important first sign of fluoride poisoning. According to official recommendations, the daily fluoride intake should be no more than 3-4 mg for an adult.

But in cheap tea bags this dose exceeds it by 75-120%, that is, 6 mg is found in a liter of tea bags. fluorine The accumulation of fluoride is especially high in old tea leaves, which are most often used in the production of tea bags.

For harm from tea bags to result in a serious illness, such excess fluoride consumption would need to be present for 10-20 years, that is, if you consumed more than a liter of tea bags every day for 20 years or 2.2 mg. fluoride for 40 years.

Therefore, you should not drink more than 5 cups of tea bags per day, and pregnant and elderly people should not drink more than 3 cups. You can especially increase the harmful effects of bagged tea if you constantly brew it in a plastic cup - an office option, or drink brewed tea that has stood for several hours.

Paper for bags

The bags are made from filter paper (much less often from nylon). A paper napkin, for example, is also made of cotton and cellulose, like a tea bag, but if you try to wrap tea in a napkin, then when brewing, the paper of the napkin turns into mush and tears. What then is the bag made of if it can withstand high temperatures and water without tearing or getting wet?

The bag consists of: abaca fibers - 10%, thermoplastic fibers - 23%, fibrous wood substances 65 - 75%. This gives powerful resistance to moisture, mechanical and thermal stress, the paper fibers are firmly bound at the intersection points, so the bag is not afraid of lemon juice, injury from a spoon, or other aggressive influences. To fasten the bag, the following can be used: glue, paper clip, heat treatment or thread. Most often it is a metal clip; the worst one is glue, the smell of which is counteracted by various flavorings.

Triangular plastic bags

Researchers from ACS “Environmental Science & Technology” found (published September 25, 2019) that when brewing plastic tea bags, microdoses of plastic materials enter boiling water, which is very dangerous to health. The size of these nanoparticles is less than 100 nanometers (for example, a hair has a diameter of 75,000 nm).

The scientists cut the bags, removed the tea, and washed out the empty bags. Then they heated them in containers. Using electron microscopy, scientists determined that 1 plastic bag released about 11.6 billion microplastic and 3.1 billion nanoplastic particles into the water when brewed.

In another experiment, scientists exposed water fleas to doses of micro- and nanoplastics from tea bags. As a result, the crustaceans developed anatomical and behavioral abnormalities, although they survived. Experts will continue research to prove that plastic can have chronic effects on human health.

How and from what are tea bags made?

Tea bags consist of two main ingredients: crushed tea leaves and pouches made of a fine fibrous material.

Good tea contains hand-selected top tea leaves and leaf buds, which are then subjected to several processes including drying, fermentation, grinding, blending.

Unscrupulous manufacturers use dust and scraps left over from the main production instead of crushed tea leaves. Technically, tea made this way is made from the same leaves, so in theory the flavor should be the same. However, because herbal waste is a smaller particle that brews more quickly, and the sachets tend to stay in the cup too long, quite a lot of it is released as a result. tannin(tannic acid), making the drink bitter and less healthy than loose leaf tea.

Another factor is that companies may use cheaper teas to reduce costs, especially for flavored teas.

Most pouches are created using a thin fiber material that is closed with a staple and attached to a string with a tag. The fiber used to create an envelope or pouch can be made from a variety of materials, including paper, bamboo fiber, PVC, rayon, nylon, thermoplastic, polypropylene. In fact, these are some of the most common materials used in the tea market today.

Benefits of tea bags

One of the main benefits of a tea bag is its convenience, because not everyone has time to brew loose leaf tea.
During a rush at work, a short lunch break or a trip, to quickly prepare a hot or refreshing drink, tea bags are ideal.
There is no need to measure how much tea leaves to pour, since the required amount is already measured at the factory; all that remains is to add hot water.
Tea bags does not create clutter or dampness, which leave loose leaf teas, also do not need to wash the teapot. They are very easy to recycle - just spoon them out of the cup, then throw them in the trash.
Loose leaf tea may contain more bioactive substances, since higher quality leaves are used for its production, however, due to the fact that the leaves in the tea bags are highly crushed, the extraction process is enhanced.
Tea bags are widely used by many housewives, like cosmetical tools: compresses on the eyes to eliminate swelling, lotions for skin irritation, minor burns, and also as a simple and cheap substitute for an odor absorber in the refrigerator, a dye.

How harmful is bagged tea?

Current research confirms that tea bags may be unsafe for many reasons. Their safety depends on factors such as the material used to make the tea bag, how those materials are handled during the manufacturing process, and the contents.

If small bubbles form when dipping the bag into boiling water, this is a cause for concern. A carcinogen known as epichlorohydrin often coat the surfaces of the pouches, which prevents the paper from dissolving.
Some tea bags are made of nylon or even PVC. These substances can break down as soon as they enter hot water, releasing harmful chemicals.
It is believed that most of the contents of the sachet retain pesticide residues. A Greenpeace report published in 2015 stated that 34 pesticides were found in Indian tea. Therefore, if the raw materials have not been washed, this means that all the pesticides go directly into the drink.
If the tea bag is not held together with a paper clip, it is most likely sealed with glue (plastic, resin, epoxy or other heat-safe adhesive), which is usually chemical substances, which are unsafe for health.
Tea placed in tea bags usually consists of crushed tea leaves or pieces of fruit, which provide a faster brew but lack the subtlety of the leaf flavor. Or contain only dust left over from the processing of raw materials.
Often, raw materials reach the end of their shelf life or can gather dust in a damp warehouse surrounded by mold for decades. Old tea accumulates fluoride- a substance that negatively affects the digestive, skeletal systems of the body, and kidneys.
To enhance the taste, manufacturers add various aromatic additives, and to brighten the color, dyes, which are at best allergens, and at worst - carcinogens.

How to choose a tea bag

You should buy tea in specialized stores. At the same time, the price-quality ratio is the main quality criterion.
Each pack must be sealed in film, and the bag must have individual packaging.
It is better to choose the material of the bag itself from nylon or corn starch.
There should be no tea dust at the bottom of the box, which is a sign of a low-quality product.
To check for the presence of dyes, the bag should be immersed in cold water; it should not change color.
Study the composition and manufacturer. The best option would be if the tea was packaged in the same place where it was grown.
Brewed tea should have a rich, bright color, but not cloudy.
Don't buy flavored tea. If you want to enhance the taste, add a slice of lemon, a leaf of mint or lemon balm.

Such a convenient invention of mankind as tea bags is widespread throughout the world. There is nothing surprising in this, because it is very easy to brew a tea bag in almost any conditions - at the workplace, on the road, in nature. However, those who prefer such convenience should think about how the consumption of such tea affects health, and what exactly is in the bags that we are used to brewing. This will be discussed in the article below.

What do tea bags actually contain?

The purchased product does not always contain exactly what is written on the packaging. This statement applies directly to bagged tea. It is generally accepted that small particles of tea leaves give a stronger brew than large ones. However, very often dishonest manufacturers can add a variety of components to the contents of the packages that have nothing to do with tea. These can be dried leaves of various plants or trees, as well as tea whose expiration date has long passed. If flavorings were added to this mixture, then with a high probability it can be stated that in this way the manufacturer is trying to hide the main product, which is unsuitable for consumption. In fact, non-natural flavors are much cheaper than natural ones. And if there are pieces of fruit in such tea, then this is most likely just a way to demonstrate to the buyer the “naturalness” of the product as a whole. Often such a product contains dyes, preservatives, and also a large amount fluoride , which negatively affects the condition of teeth and bones.

As for whether it is possible to drink stitched tea, the answer to this question is, of course, negative. Any dried plant has a shelf life of 2-3 years. But this should not be judged by the date on the packaging. After all, it indicates the date of packaging in the bag, and not the time when the harvest was harvested. Often, such tea is stored in warehouses for years and reaches the consumer already completely unusable, but with the help of various tricks disguised as a good product.

What are the benefits of tea?

Benefits and harms green tea described in many popular and scientific journals. In fact, this drink is actually very good for your health. It contains a lot of macro- and microelements, . Powerful and catechin . This drink strengthens, prevents negative processes leading to the development of tumors, and improves the condition of the nervous system. High-quality and properly brewed tea leaves are useful for many diseases and conditions. When describing the effect that green tea produces, the benefits and harm to the liver are also necessarily taken into account. A positive effect on the liver is noted due to the content of a large amount vitamin P and other components. This drink stimulates production, helps cleanse the body of, regulates lipid metabolism etc. But if you buy green tea in bags, then there is simply no point in talking about its beneficial properties - most likely, it is a low-quality and useless product.

Therefore, the answer to the question whether it is possible to constantly drink green tea is rather positive, provided that the person does not suffer from hypotension . However, it should not be abused either, since the accumulation polyphenols may lead to poisoning.

Do not constantly brew tea that is too strong. Its benefit or harm is due to the fact that a very strong, concentrated drink has a more active effect on the body. It is a strong tonic, so drinking it before bed is not recommended. It should not be consumed by those who have problems with the gastrointestinal tract and heart. Also, a drink that is too rich can cause an increase in

There are many other drinks - varieties of tea. For example, the so-called Kalmyk tea , the benefits and harms of which are often discussed online. This drink includes non-fermented tea leaves, steppe herbs, milk, fat, spices, and salt. Kalmyk tea is very popular nowadays, its positive properties for the body are recognized. It is good for the immune system, helps overcome colds, has a positive effect on the digestion process, the condition of the gallbladder, and also tones the body. It is also recommended for nursing mothers to drink.

But information about all the beneficial properties is valid only for high-quality loose leaf tea and drinks based on it.

Tea bags: benefits and harms

Since people often ask questions about whether green tea bags are healthy and which tea bags are the best, you need to clearly understand the following: regular consumption of such a product is harmful to health.

Fluorine compounds

Research confirms that bagged tea, especially cheap tea, can increase fluoride compounds in the body to dangerous concentrations. And this, in turn, leads to joint pain, muscle weakness, and fusion of the vertebrae. In addition, with an increased fluoride content, the kidneys suffer, the strength of teeth decreases, and oncological processes .

The harm of tea bags to the human body is also reflected in the fact that dark spots appear on the teeth as a result of fluoride poisoning. After all, the fluoride norm for a person per day should not be more than 3-4 mg. However, research confirms that the sachets contain a lot of fluoride - on average, a liter of such a drink contains about 6 mg of this element. Fluoride accumulates most in old tea leaves, which are often used to make tea bags.

However, speaking about whether tea bags are harmful or not, it should be noted that serious illnesses due to excessive consumption of fluoride develop over a long time. That is, this directly threatens those who have been consuming such tea in large quantities every day for decades - about a liter per day. Therefore, lovers of this drink should not drink more than five cups of it per day. And expectant mothers and older people should limit its consumption to 3 cups or choose a healthier drink.

Those who are interested in why such a drink is harmful should take into account one more feature of it: the harmful effects on the body are enhanced if you brew the bags in a plastic cup or consume tea that has been brewed for several hours.

A tea bag is usually made from filter paper. Nylon is used much less frequently for this purpose. The material from which paper napkins are made is not suitable for this purpose, since such paper will immediately tear in water. Therefore, the bags are made from a special material containing:

abaca fiber – 10%;
wood fibrous substances – 65-75%;
thermoplastic fiber - 23%.

This material is very resistant to moisture, thermal and mechanical stress. Since paper fibers are very tightly bound together, they are not afraid of aggressive influences. Therefore, the bags are not affected by lemon juice, they are almost impossible to damage with a spoon, and you need to make an effort to tear them apart.

In order to seal the package, different manufacturers use different methods. This could be paper clips, glue, threads, heat treatment.

The most unfavorable in this case is the glue, which “supplies” the drink not only with an unpleasant odor, but also with harmful substances. To remove the unpleasant odor, manufacturers over-flavor tea.

Raw materials for packaged drinks

Thus, the benefits and harms of tea depend directly on its quality. As for the raw materials for the bags, the inside contains mainly tea crumbs, often stitched, remaining after the production of loose leaf tea. However, many manufacturers generally pack tea dust inside. Therefore, the benefits of tea in this case are not discussed at all. Such residues from production in China are considered tea waste. As a rule, they are simply dumped in large piles as garbage. Such dust is stored in the open air.

Of course, tea waste is very cheap - it is bought for about $10 per 10 kg. However, manufacturers from Europe buy up such garbage and produce bagged tea. Naturally, the finished product is positioned as high-quality; its benefits and unique taste are described in detail on the packaging. The cost of such a product is quite high, which brings huge profits to manufacturers. But the harm of tea in this case is that consumers receive a low-quality product.

Even now, many people simply do not understand the difference between real tea and surrogate tea bags, since they have not tried real quality loose leaf tea. Therefore, teabag manufacturers will never tell you why the tea they offer is harmful. On the contrary, it is always called very high quality and useful.

Based on reality, it is the consumer who must think about what product he is buying, whether tea bags are harmful, and whether it is worth introducing it into the daily diet.

Expiration date of tea

Not only bagged tea, but also loose leaf tea may not be very beneficial for health, provided that its shelf life has already expired. Again, the information on the packaging in this case is not decisive. Therefore, those who seek to provide themselves and their loved ones with a quality product should prefer products from reputable manufacturers with a good reputation.

On average, the shelf life of black tea is up to 3 years, and the shelf life of green tea is the same. After this period, the tea, of course, will not become a completely spoiled product. But nevertheless, during this time it almost completely loses its beneficial properties. In addition, stitched leaves can accumulate substances that are dangerous to the body. aflatoxins . Once the package is opened, it cannot be stored for more than a month.

How to determine freshness?

To determine whether purchased tea leaves are fresh, you need to pay attention to the appearance of the freshly brewed drink. If a white foam appears on the sides at the top, this means the leaves are fresh. If there is no foam, and a sediment appears at the bottom of the kettle in the form of brown stains, and at the same time a rancid taste and aroma is felt, then the product is stale.

What is tea trash?

Fresh – these are the remains that are raked on the plantation after tea sorting. It has very few beneficial properties, but is processed less later, so some of the tea taste and smell are retained. Such raw materials are the best of the tea waste. And many manufacturers position the drink made from it as “premium”.
Average – it remains after conveyor packaging, transportation or packaging of high-quality tea leaves at enterprises has been carried out. This drink has almost no characteristic aroma, color or taste. To disguise this, various flavoring additives, dyes, flower petals, etc. are added to such garbage. At the same time, such a product is often labeled “highest category.”
Lowest category - this is no longer just garbage, but harmful raw materials containing fungi that are dangerous to health, and a large number of chemical additives. Since the product is stitched, it has no taste or aroma. Its smell is reminiscent of hay, and most often contains aflatoxin . This is a fungal waste product that is dangerous to the body and affects the liver. Manufacturers always add dye to such raw materials to make it look like green or black tea. Of course, it also contains aggressive flavors. When aromatization is performed, the remaining antioxidants are destroyed, beneficial amino acid L-theanine . That is, as a result, tea becomes completely useless and at the same time dangerous to health. In addition, flavorings can provoke an attack; they are especially dangerous for children, the elderly, and those who are prone to allergies.

What are aflatoxins

It is very dangerous for humans mycotoxins , which are produced by fungi. Such substances are often found in foods stored in conditions of high humidity and extreme heat. Often these substances are formed during prolonged or improper storage of herbal infusions and various teas, as well as pumpkin seeds, peanuts, and corn.

They are resistant to heat treatment. And if a very large dose of such poisons enters the body, the person dies due to liver damage. But even small doses of aflatoxins have a detrimental effect on the body, since their accumulation increases the likelihood liver cancer . In countries where there is no control of products for mold content, mortality due to cancer is tens of times higher than in countries with strict control of products.

conclusions

Choosing quality tea for the whole family is a responsible matter and requires the right approach. You need to know when choosing green or black tea: the health benefits and harms of this drink directly depend on its quality. Both green and black tea bags from any manufacturer are a drink that should not be consumed regularly. At the same time, high-quality and fresh tea leaves not only help improve your well-being and give you energy, but also have a wonderful taste and aroma.

Tea bags are an almost integral part of human life. This aspect is explained ease of brewing and time saving. Many people are interested in the question: is it harmful? Unfortunately, there is a risk of harm to the body, so you need to understand the main features of bagged tea and its brewing.

Advantages

Before you figure out whether green or black tea bags are healthy, you need to note the main advantages:

Production

You can understand the benefits and harms of tea bags paying attention to the tea production process. Packaging occurs using special equipment in automatic mode. To preserve the beneficial properties, the bags are produced in fairly large sizes. P manufacturers with a conscientious approach, All bags are packaged in separate envelopes, which minimizes the influence of environmental factors.

We can draw a small conclusion: whether tea bags are harmful depends on the manufacturer, production method and technology.

Tea ingredients

Before determining the harm and benefit of bagged tea, let’s look at its components. Everyone knows: tea bags consist of leaf cuttings and dust, remaining after the main production. Sometimes there is grass and tree bark.

Answering the question of why green and black tea in bags are harmful, we can come to the conclusion that there is a risk of buying expired raw materials, mold, mildew, and other harmful components. It is difficult to call such a product tea. But occasionally you can afford it to save time.

Sometimes tea may contain additional ingredients - fruits, herbs, flowers. This can be both beneficial and harmful. Responsible companies actually add them, while others use flavorings. The latter allow you to hide the chemical aroma.

Previously, tea bags were packed in fabric bags. Now due to cheaper manufacturing began to use paper but it dissolves under the influence of water, and this does not happen while brewing a tea bag. The reason is a special chemical impregnation that prevents dissolution.

Note the use of glue. It has an extremely unpleasant odor. Subsequently, flavoring agents are used. Without them, no one can drink tea.

There are manufacturers who use nylon and silk, and threads for fastening. Such teas are a little more expensive, but the harm is significantly reduced, and you don’t have to worry about a large number of chemicals.

You should understand the correct purchase and brewing of a packaged drink in order to reduce the harmful effects on the body:

You can't save money. It is recommended to choose only tea in nylon bags with strings attached to them.
The bags must be packed in separate envelopes(foil is used during production). The box itself should not contain tea dust.
It is allowed to brew the drink once.
It is better to use only ceramic or glass dishes. Plastic products are strictly prohibited. They make the tea poisonous.
You should not drink tea on an empty stomach. This provokes ulcers and gastritis.
Very hot tea is prohibited. It is recommended to wait until the drink cools to room temperature. Completely cooled drinks contain harmful substances.
The recommended dosage is no more than 5 cups per day.

Benefit

Summing up, we can confidently say: despite the convenience, Bagged tea has a rather bad effect on health. If you buy expensive tea, you don’t have to worry.

A tea bag can be used as a useful product, for example:

compresses for eyes(remove bags, bruises, hide a tired look);
relieving burn pain, inflammation, skin irritation (you need to regularly apply cool tea bags);
ulcers inside the mouth;
fight against warts(the affected area must be treated for 10 days, applying a compress for half an hour);
softening and improving the taste of meat(achieved by soaking);
cleaning dirt from floor coverings, furniture products;
neutralization of unpleasant odors (you need to put a tea bag in the problem area);
fertilizers for houseplants(should be dried before use);
natural dye.

What about green tea?

Many people think that green tea is much healthier, but does this statement apply to a packaged product? According to research it has been proven that it does not contain any beneficial substances– the production technology is no different. The bags contain expired ingredients, fungus, and chemical components. Manufacturers add flavor using ordinary hay. That is why This tea is not recommended for consumption.

Harm

A cheap product contains fluoride, so over time, with prolonged use, the following diseases may develop:

tooth weakness;
joint problems;
bone spurs;
vertebral fusion;
osteoporosis;
muscle weakness;
kidney diseases.

Scientific research

According to American studies, it was found that if you drink 5 cups of the drink daily, there is no great harm to the body. If the dose is exceeded, the fluoride concentration will become critical.

There are three main issues that arise:

Are the terms of use respected?, permitted concentration of chemicals by manufacturers? Is chemical treatment often used on tea plantations? The soil can accumulate poison.
Can they withstand a certain period of time? necessary to remove harmful substances and obtain safe raw materials for use?
Plantations are becoming healthier. What does a person get after this?

Consumers who do not know objective information and do not have special knowledge will not be able to optimistically answer the above questions.

So, it was revealed why green and black tea in bags are harmful. Find out if it's useful. Whether to drink such a drink or not is everyone’s decision. It is recommended to choose higher quality products with a higher price in order to minimize the harmful effects on the body.

The claim that tea bags are healthy is erroneous. This is just a trick by the manufacturers. It does not contain beneficial substances that have a positive effect on the body and health.

Advantages

Before you figure out whether green or black tea bags are healthy, you need to note the main advantages:

Production

We can draw a small conclusion: whether tea bags are harmful depends on the manufacturer, production method and technology.

Tea ingredients

Note the use of glue. It has an extremely unpleasant odor. Subsequently, flavoring agents are used. Without them, no one can drink tea.

You should understand the correct purchase and brewing of a packaged drink in order to reduce the harmful effects on the body:

You can't save money. It is recommended to choose only tea in nylon bags with strings attached to them.
The bags must be packed in separate envelopes(foil is used during production). The box itself should not contain tea dust.
It is allowed to brew the drink once.
It is better to use only ceramic or glass dishes. Plastic products are strictly prohibited. They make the tea poisonous.
You should not drink tea on an empty stomach. This provokes ulcers and gastritis.
Very hot tea is prohibited. It is recommended to wait until the drink cools to room temperature. Completely cooled drinks contain harmful substances.
The recommended dosage is no more than 5 cups per day.

Benefit

Summing up, we can confidently say: despite the convenience, Bagged tea has a rather bad effect on health. If you buy expensive tea, you don’t have to worry.

A tea bag can be used as a useful product, for example:

compresses for eyes(remove bags, bruises, hide a tired look);
relieving burn pain, inflammation, skin irritation (you need to regularly apply cool tea bags);
ulcers inside the mouth;
fight against warts(the affected area must be treated for 10 days, applying a compress for half an hour);
softening and improving the taste of meat(achieved by soaking);
cleaning dirt from floor coverings, furniture products;
neutralization of unpleasant odors (you need to put a tea bag in the problem area);
fertilizers for houseplants(should be dried before use);
natural dye.

What about green tea?

Harm

A cheap product contains fluoride, so over time, with prolonged use, the following diseases may develop:

tooth weakness;
joint problems;
bone spurs;
vertebral fusion;
osteoporosis;
muscle weakness;
kidney diseases.

Scientific research

According to American studies, it was found that if you drink 5 cups of the drink daily, there is no great harm to the body. If the dose is exceeded, the fluoride concentration will become critical.

There are three main issues that arise:

Are the terms of use respected?, permitted concentration of chemicals by manufacturers? Is chemical treatment often used on tea plantations? The soil can accumulate poison.
Can they withstand a certain period of time? necessary to remove harmful substances and obtain safe raw materials for use?
Plantations are becoming healthier. What does a person get after this?

Consumers who do not know objective information and do not have special knowledge will not be able to optimistically answer the above questions.

The claim that tea bags are healthy is erroneous. This is just a trick by the manufacturers. It does not contain beneficial substances that have a positive effect on the body and health.

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Fluoride compounds

Paper for bags

Triangular plastic bags

Read more about the raw materials for so-called tea

How and from what are tea bags made?

Benefits of tea bags

How harmful is bagged tea?

How to choose a tea bag

What do tea bags actually contain?

What are the benefits of tea?

Tea bags: benefits and harms

Fluorine compounds

Raw materials for packaged drinks

Expiration date of tea

How to determine freshness?

What is tea trash?

What are aflatoxins

conclusions

Advantages

Production

Tea ingredients

Benefit

What about green tea?

Harm

Scientific research

Advantages

Production

Tea ingredients

Benefit

What about green tea?

Harm

Scientific research

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