Caffeine and Tea

Caffeine and green tea: Comparison mg of caffeine content per green tea variety, coffee, black tea, etc. effect of preparation, temperature, infusion and tips.

The caffeine in tea

The caffeine (or caffeine) is contained in some 60 plant alkaloid (1,3,7-trimethylxanthine) from the substance group of xanthines. The names Tein and Thein (or even falsely theine) are equivalent to the caffeine in tea, but are in professional circles as outdated. It is bitter tasting and has a strong stimulating effect, which is why it has been used in Asia for millennia by Buddhist monks for meditation. Caffeine is one of the phytochemicals and is mainly used for insect repellent made. In green tea, it is bound in a special form and interact strongly with L-Theanine and has as according to numerous studies, many extremely positive effects on health that are unfortunately too little known.

The complex issue of caffeine is to consider the following key points:

Caffeine content in mg table	Comparison of coffee, espresso, etc. and the main types of tea
And caffeine steeping time	How does the caffeine content by prolonged infusion time?
Healthy effect	Numerous positive effects on the health
Recommended limit	300 mg per day?
Caffeine teas arms	Bancha and Karigane, Kukicha
Tips in Dealing with caffeine	Teas and times, preparation

Comparison caffeine (mg) teas

The comparison of the amount of pure caffeine from coffee, green tea, black tea and other caffeinated drinks is often not done precisely. For one thing - as listed above especially crucial - if the caffeine is bound to tannins and what other ingredients are available. On the other hand, the caffeine content varies depending on the type of tea. Then, it's ultimately not just about the caffeine content in the dry matter, but how much coffee or tea is used for brewing a cup and how much is released into the water during brewing. A comprehensive comparison is given in the table in mg of caffeine .

Caffeine in green tea by type

It should be emphasized that the various types of green tea have a very different caffeine content. This ranges from the shaded tea Gyokuro, Tencha and matcha with a particularly high amount (similar to coffee), the still high level of Sencha (unshaded tea from the leaves) of the first harvest, slightly lower values ​​of Sencha second plucking and the variety Benifuuki, to the relatively low content in the mixed rice with sencha (Genmaicha), the older leaves of the tea (Bancha) and the tea made ​​from the stems of the tea plant (Karigane / Kukicha), which only very little contains caffeine. However Karigane from Gyokuro contains a little more caffeine than Karigane from Sencha. The caffeine content is determined primarily by three factors:

1. Young plant parts (buds and young leaves small) have significantly more caffeine than older plant parts (leaves and stems older).
2. The first picking = harvest has significantly more caffeine than the second plucking.
3. Shaded teas (eg, Gyokuro, Tencha, matcha) have much more caffeine than unshaded tea (Sencha, Bancha, Karigane, Kukicha, Benifuuki).

Infusion and caffeine concentration

Another common question is whether one can influence the caffeine content of tea by a shorter or longer infusion time. For example, if a caffeine-sensitive person could do a better Gyokuro evening when a certain time drawing would be selected. We have all heard the old rule: "For tea, the caffeine content is increased by a longer brewing time". The answer is that this approach is to look critically at green tea for various reasons. Details, refer to the contribution of green tea and caffeine steeping time .

Water temperature and caffeine content

It raises the question whether one can influence the caffeine content by selecting the water temperature of the infusion. The primary answer is no. Even at a temperature of only 60 degrees Celsius, already the majority of the caffeine dissolves relatively quickly in water. Decreasing the temperature is below 50 degrees Celsius to solve Although less caffeine, but hardly more important and other healthy ingredients into the water and still achieve a disproportionately high level of caffeine. Increasing the temperature well above 60 ° C so you lose important ingredients that make caffeine-friendly. The caffeine is chemically unstable at much over 100 degrees Celsius (sublimed from 178 degrees Celsius).

Caffeine in Coffee vs. Tea

Coffee beansThe warning voices against the consumption of coffee and its caffeine are numerous. And not without reason. Because the substance is different than in green tea not bound to tannins in coffee, but to the so-called chlorogenic acid. No amino acids in coffee also exist (particularly the L-theanine) as they are available in green and partially in black tea that will make the effect of caffeine much better tolerated. Given the lack of binding to tannins it reaches the coffee through the stomach into higher speed in the bloodstream and causes the lack of effect of combination with amino acids starting from a relatively low consumption of an unrestrained effect or overdose, to a tolerance education in the nerve cells and withdrawal symptoms . The caffeine in coffee arrives for its lack of attachment to the aforementioned substances through the bloodstream to the adrenal cortex. There it triggers the release of the stress hormone adrenaline, which is highly stimulating. To reduce the adrenaline again, it is the body norepinephrine distribute. The unbound caffeine has only a short-lasting effect. This process is stressful for the body and overall energy costs. After the stimulating effect of the organism is therefore even more exhausted than before.

Caffeine in black tea

The same applies to the other stimulant caffeine, such as the black tea or drinks. Again, the caffeine in high doses similar to quickly get into the body, since here also lacks binding to the tannins and the buffering by L-theanine something smaller. The black tea tannins are converted by the fermentation flavors. It is emphasized, however, that in contrast to coffee, a higher content of amino acids present, which is still significantly exceeded by the content in green tea. Thus the caffeine of black tea in the body seems a bit friendly, as the coffee, but still much more burdensome than that of green tea.

The particular caffeine in green tea

As in the preparation of tea, the fermentation of the green leaves of the tea plant is stopped, the remain ingredients of green tea by the process of oxidation and the resulting chemical changes largely spared. Thus, the caffeine in the abundant tannin remains - unlike the black tea and the coffee - bound in green tea. Another important difference is the high content of amino acids in green tea, especially the L-Theanine. See also the article and comparing teas . This bond and the effect in conjunction with the other ingredients makes a big difference to the other caffeinated beverages dar. Because the green tea, the caffeine reaches for his Gerbstoffbindung mainly through the intestine into the blood, and acts in rotation with other valuable ingredients on a very mild and prolonged Art This property can flourish very well the very healthy side of caffeine in the human body.

Unlike the caffeine of coffee, the bound caffeine in green tea does not or hardly directly on the adrenal cortex. Rather, it stimulates the central nervous system at first, which then leads to a much smoother distribution of adrenaline. Accordingly, also norepinephrine, if ever, be used only gently. The effect of the caffeine of green tea keeps thereby also significantly longer.

Positive health effects of caffeine

It is used in the health effects of the caffeine so not only the content of the beverage in milligrams (mg), but rather to its interaction and binding with the other ingredients. Numerous studies have pointed to the positive effects of caffeine in green tea.

It should be emphasized that studies have highlighted in recent years, very healthy properties of the self is not bound to tannins caffeine in coffee (particularly in the type of coffee Arabica). This finding seems to spread more and more. Of course, this only applies to consumption of relatively small amounts. In general, the limit of about here is often 300 mg daily called for a healthy adult.

A much healthier effect unfolds but the caffeine in green tea. Here are exceedingly numerous positive effects for health. So the caffeine contributes significantly to the overall excellent health effects of green tea on. However, side effects such as nausea, nervousness, upset stomach, or similar to, it is recommended that measures should be taken until the symptoms are tolerable, or disappeared completely.

Side effects of caffeine in green tea

People react differently to the caffeine in green tea. Although it is here bound to tannins and with L-theanine is compatible, it can still significant side effects show that of falling asleep can not reach dizziness, stomach pain and headache. Furthermore, it is recommended that during pregnancy, no caffeine is ingested and thus no green tea should be drunk. Babies can not break down the caffeine. The recommendation applies even up to 10 weeks of pregnancy, if the mother should feed the baby. According to studies, a significant caffeine intake of about 8 cups of coffee per day leads (about 300 mg of caffeine) to an increased risk of miscarriage and premature birth. But already at 1.5 cups of coffee showed certain studies have negative effects on the baby (lower birth weight). An alternative is the use of Sencha Karigane because this leg has very little caffeine. But our recommendation is in pregnancy and lactation: general waiver of green tea and caffeine.

What to do with sensitivity to caffeine green tea

The strong health benefits of green tea can cause caffeine sensitivity in adequate green tea consumption on its own over time is significantly reduced and possibly better. Also be emphasized that the green tea does not addicted to caffeine as opposed to coffee. Nevertheless, recommended for side effects very not "hineinzuzwingen" in the tea, but to reduce the dose to a tolerable level (but at the proper preparation to stay) to select and pleasant for the time of day tea places. It is very important to drink shortly before or after the green tea plenty of fresh sparkling water. People with increased sensitivity should drink at least the same amount of water. The best advice on how to cope better with the green tea and its caffeine, see the article " Tips in dealing with the caffeine in green tea . "

General Instruction for preparation tea

For optimal enjoyment of tea, the water should be fresh, soft and free of chlorine. It should always be considered the manufacturer's dosage and withdrawal times. However, one can assume the following rules of thumb:

BLACK TEA:

When black boiling water should be used to dissolve the fine flavorings from the sheet. A stimulating effect is min at an infusion time 2 to 3 achieved.
Drawing with increasing duration, the first caffeine dissolved by the tannins (tannins) is bound. Thus, the longer pulling tea no longer seems so stimulating.

GREEN TEA:
Green tea should be brewed generally colder. Green tea can be brewed between 50-80 degree hot water. Brewing times varying between 30 seconds and 3 minutes. 2nd Infusion is usually the better. For optimum enjoyment, give special attention to the manufacturer's recommendation.

WHITE TEA:
White tea also should not be brewed too hot. 70 -90 degrees, with a maximum of 3 minutes steeping time here are usually recommended. Even the white tea can be brewed several times. Each infusion will have a different taste level.

YELLOW TEA:
Sensitive as green or white tea, yellow tea with the 80-95 degree hot water should be brewed.

ROOIBOS, HERBAL TEA / FRUIT:
Preparation - Herbal and Fruit Tea
Since ingredients and volume of herbal and fruit teas are very different, there is no general statements on the preparation. Then let the tea brew five to ten minutes.

Tea cultivation and harvesting

Green tea, white tea, oolong tea and black tea come from the leaves of the tea plant Camellia established, the Thea sinensis and Thea-Assamica. An evergreen related to the camellia. Today the world is mainly crossbreeds, Assam hybrids grown.

The quality and taste difference is caused by the cultivation and processing condition. The cultivation area, the altitude, the climate, the Planzentyp and care in Pfückung and processing of tea leaves affect the taste and character of a type of tea ..

For the upscale tea quality, the two youngest leaves and leaf shoots (Tip) are harvested by hand. The world production of high-quality leaf tea is low and much of it is intended for the German tea market.

In China, Formosa and Japan, the tea leaves are processed mainly to green tea, primarily for their own consumption. In Assam, South India, Sri Lanka, Indonesia and Africa, mostly black broken tea and CTC Fanning is produced
Due to the increasing automation on the tea plantations, most of the world production is produced as broken tea. These are mechanically crushed leaves as Broken, Fannings and Dust Tea for the tea bag production. Here, especially in the deeper layers, also pesticides and fertilizers used to increase income. However, the residue levels of pesticides are very low compared to other food and tea are also slightly soluble in water.

With high quality, produced with care tea residues were in the numerous studies undertaken by the German tea trade, only rarely detected.

In the northern Indian Darjeeling tea growing area, most of the tea harvest is produced as a leaf tea of ​​high quality and, due to can be largely dispensed with the use of pesticides by the altitude.

Black tea protects the teeth

This is one of the lesser known modes of action of the black teas , especially as more commonly the opinion is widespread that smoking, drinking coffee and so too does the tea drinking leads to unsightly discoloration of the teeth. This is true. However, that was in the discolorations that may be caused by the black tea ingredients are proven prevent tooth decay.  

This is the polyphenols, which prevent the mouth that the ingested starch can be converted to glucose. That this transformation already taking place in the mouth, one can easily notice, by keeping a piece of dried hard bread for a long time in the mouth and chews. After some time, one finds a sweet taste that was not there before.This is due to the glucose formed here. However, this also represents the food for acid-forming bacteria, which are located in the oral cavity and the main cause of tooth decay are considered. 

If due to the tea polyphenols contained only now no glucose is formed, it lights up quickly, that this also means the emergence of tooth decay is prevented. Moreover, some physicians are of the opinion that the now diminished metabolism of the acid-forming bacteria also to a reduction of bad breath leads and therefore recommend daily drinking of tea or repeated rinsing of the mouth with it. provides tea is another for dental health relevant material - The fluoride .
Firming function of the tooth enamel Flourids is almost known to all people, at the latest, when they become parents. Because to the primary care of newborns and infants aged up to one year is the gift of fluoride tablets that are prescribed by a pediatrician. adults get these tablets no longer prescribed, but this does not mean that they do not need fluoride for their teeth today. This will now be fed by the daily mixed diet. If you've considering, which industrial processes nowadays is subject to our food, which is rather doubtful. So it's of great benefit that tea such a high fluoride content has, more than any other food.

The most important thing about black tea and health

Many people believe in the power of tea - in many oriental countries is tea as a remedy used. But not only the East but also Europe swears by the healing and preventive effect of tea.

In particular, the "Black Tea" is classified as a healing tea. Here is dried leaves of Camellia sinensis tea plant, which can grow up to 15 meters high. To be precise, these are a tea plant that is often grown in China, Sri Lanka, India and also in Indonesia and exported from there to the world. Black tea is commonly used in the community as a coffee substitute, as alleged many people that this tea because of its ingredient theine (similar to caffeine) to have a stimulant effect. The difference with coffee is that the caffeine-like ingredient theine is absorbed more slowly by the body, but you should take black tea in moderation. scientists have now found that black tea is also healthy. Besides theine or caffeine of black tea also contains theobromine and theophylline. These substances are used in medicine. Depending on how long the pull black tea leaves before you enjoy this, it also sets the appropriate ingredients and thus the health benefits free. You can only pull black tea 2 minutes, you can likely benefit from the stimulating effect. When 10 minutes is given to free the tannins that ensure that the tea is rather inedible.

The corresponding tannin antibacterial and analgesic, for this reason, this also alleviate a diarrhea disease. With regular consumption can black tea also wonderful as a stress medication use. Stress is now the No. 1 killer health, so that one is grateful for ideas that do not involve drugs. Black tea lowers blood pressure and the stress hormone cortisol - for this reason, one can obtain a wide variety of health points at a relevant dose of tea. About four cups of black tea a day is sufficient to counteract the stress factor. It should be the tea, keep it enjoyable and let stand a few minutes. Case of diarrhea , however, one attains the healing effect only when the draw 10 minutes tea leaves (so the tannins are cowardly sets), here one must however remember that the tea gets a rather unpalatable taste due to the tannin. Like Green tea also acts Black Tea by the active ingredients, polyphenols and fluorides present in the composition, resistant to caries. The teeth can thus be protected by the consumption of black tea.

Should also Black tea anti-carcinogenic effect, resulting in a study at the Center for Human Nutrition, found out. This was demonstrated that black tea inhibits cell growth in tumors, even slightly more than that of green tea. Prostate cancer should be significantly reduced if you take black tea.

However, bear in mind is conclusive that the black tea - handled as so often like - should not mix with milk if you do not want to miss the health benefits, even if intended to reduce the risk of kidney stone formation by the addition of milk. because the opinions that milk in black tea is healthy or not now go far apart. Thus, many scientists argue that the health-promoting substances were reduced when milk is added. Other people see this again no problem for the healing effects of black tea.

Black tea and caffeine

Caffeine per 100 ml

Tea - 35.0 mg
Coffee - 80.0 mg
Coca Cola - 10.0 mg

How much caffeine brewed tea contains depends on a variety of factors. Key points include the origin and variety of teas. In the shadow of a growing varieties significantly higher caffeine content than those that thrive under high solar radiation. Extremely important is also the brew time the tea. If the tea can keep only briefly in hot water, less caffeine release from the dried tea leaves and get into the drink.

Black Tea, Green Tea and White Tea does not necessarily come from different plants. The name of the kinds of tea rather refers to the type of the tea leaves and drying in which stage of growth, they were harvested and dried. Nevertheless, the different kinds of tea are usually also made ​​of different teas. This fact also leads to the conclusion that the type of tea is no clear information on the caffeine content. T

he type of tea with highest caffeine content is actually the Darjeeling tea, which is considered one of the most important types of tea for the production of black tea. According to various sources can weren assumed in 100 ml of a tea caffeine content between 20 and 50 mg. Only the classical types of tea black, white and green tea are considered. Many other teas such as chamomile, peppermint or rose hip tea contain caffeine. way, used to be called theine present in tea caffeine. By this term now has been abandoned because it is chemically identical to the substance. However, the caffeine contained in tea is generally slower and longer. For optimal effect, the tea should draw a maximum of four minutes. Then the caffeine that make it largely ineffective binds with tannins.

Caffeine content of tea

The caffeine content of tea is less than the caffeine content of coffee. The exact relation is difficult to determine. Based on our research, the mean caffeine content of 100 ml of coffee at about 80 mg, and the bandwidth (64-96 mg) is large. The caffeine content of tea is usually given between 20 and 50 mg per 100 ml. Depending on the definition thus contains tea between 20 and 80% less caffeine than coffee. Comparing my the caffeine content of tea with that of cola or energy drinks to get to surprising results. Regarding the caffeine content of tea is two to five times stronger than Coca Cola and Pepsi Cola. In addition, the average tea is at the level authorized in Germany Energy Drinks. So tea is the healthy alternative to cola, coffee and energy drinks for those who do not want to give up caffeine.

The caffeine content of green tea and black tea is comparable

Green tea and black tea come from the same plant, so the ingredients do not differ only once. Only a few substances by fermentation in black tea can be changed, which will remain in the green tea in their original form.

Related to the caffeine content which primarily means that there is no fundamental difference between green tea and black tea are. Determine how much caffeine contains the tea is only once the origin and tea. Other conditions are the light conditions during growth and the brew time the tea.
Regarding the caffeine content is Darjeeling tea is the leader among the teas. This black tea contains, based on the dry weight, 4 percent caffeine. The Gunpowder green and the black Ceylon tea are 2.5 percent in midfield. Contains very little caffeine Japan Bancha tea . This mild green tea has a caffeine content of 1.6 percent.

How much caffeine a tea plant produces depends very much on the sunlight. Shrubs that grow in the shade, contain more caffeine than those that grow in the sun.

Not quite right way, is the statement that black tea would have a calming effect after a preparation time of 5 minutes. At 2 minutes in boiling water, in some black teas sufficient to remove half of the available caffeine in the leaves. After about 3 minutes the tea leaf contained in the start tannins to resolve. These tannins react with the caffeine already solved, so that it is no longer usable for the body. A portion of the caffeine so it can no longer be stimulating, but it does not disappear completely.

If you pour 10 grams of tea with one liter of water containing the finished brew between 200 and 400 milligrams of caffeine. For comparison, a liter of coffee contains 350-1100 mg of caffeine. In the tea contains caffeine acts differently than from coffee. While the caffeine goes straight into the blood from the coffee, the caffeine from the tea is taken up slowly because of the tannins.

By the way, whether from caffeine, caffeine, theine, or Tein Thein's speech is purely chemically there is no difference. In its actual effect is caffeine from coffee and tea do not differ.

But people who can not sleep after drinking caffeinated beverages still have to do without their green tea or black tea. With gentle methods, it is now possible to produce decaffeinated tea. Compared to traditional teas decaffeinated version has a better taste and a richer color. Decaffeinated tea that is an equivalent alternative to normal tea and also for people with high blood pressure is suitable.

Tea with lemon cure depression

Winter is still done its job, and you have started vitamin deficiency and its accompanying depression? Do not worry! Eat more fruits and drink tea with lemon. This will help you regain strength, to remedy the lack of vitamins and returns the perfect mood.

Tea with lemon doctors prescribed for depression and hypotension, it is courage and a pleasant taste. In the plant contains a specific restorative material - schisandrine.

In Russia naturally found only one type of magnolia - the Chinese. It grows in the Far East. As the drug is used as a raw material itself vine and its fruit.

Tea with lemon grass is easy to prepare yourself. Two tablespoons of black tea pour 0.5 liters of boiling water, let stand 5 minutes. In parallel, two tablespoons of fruit of Chinese magnolia brew 0.5 liters of boiling water. The resulting infusion broth and pour into the pan, cover and let stand 10 minutes. Tasty and healthy drink is ready! Remember, it is not recommended to take lemongrass after 18 hours, and nailimonneyshego your mood!

Types of Tea

Tea. He is accompanied everywhere these days, and we perceive it as something ordinary, self-evident, that just is. But do we know what is the tea? Do we know the taste of tea? 
There are many people who say, "I do not particularly like tea, I do not like the taste, and I get around without it." In response to this saying I have always conducted an experiment - just regaled the man tea.It is strange, but it works to this day. When asked, "What's that tea? Such a course I like it, "the answer is always the same:" The secret of good tea - to choose and properly prepare. "

As the tea came into our lives?

Legends on this topic there are countless. So do not dwell on them. Suffice it to say that according to their homeland of tea is China. 
Yet the real historical facts confirm that in the year 552 Buddhist monks taught the Japanese art of proper tea. The latter, in turn, improved the process, creating the basis for his famous tea ceremony today. The concept of "Teizmus" appeared a little later, and it notes the almost religious devotion to this drink. 
During Tyang Dynasty (618-907). tea becomes widespread commercial commodity. Tea has become firmly established in all sectors of society and are no longer treated to the benefits available only to the clergy and the elite. 
in 1610 was made ​​the first shipment of tea from Japan sailboats through on. Java to Amsterdam. Since Holland was 50 years, the only tea importer in Europe. In 1669, this business has entered England. Tea-based monopoly of their East India Company lasted until 1833. By this time the tea reached Europe by land around the vessels. 
tea in Russia was in the mid-17th century, when the caravan from Mongolia was delivered 200 bags of tea as a gift to the birthday of the first king of the Romanov dynasty, Mikhail I. Tea, delivered caravans, enjoyed greater popularity than that by sea, because he was transported by sea to the tarred vats, why he acquired a musty flavor. It is wanting to drown him, the tea began to be used with sugar. 
In 1662, tea has officially hit the court of King Charles II. From that time in Europe tea is acceptable by all sectors of society. 
immigrants from English in the late 17th century tea reaches American shores. Over the years he has won here and myself a lot of fans, especially in the higher strata of society. So organized Tea Partys. In 1760, tea was in third place on the imported goods in New England. 
During the early 20th century tea became popular not only as a beverage but also fashionable in different social strata. Everywhere began to open the «Tea-Houses», and the hotels offer Tea-Time. 
Around the 1913 Argentine Tango comes to Europe, and it very quickly "connect" with the tea. In the "Golden Twenties" was a megahit Tee-Tangos - in pubs and restaurants after the satisfaction of the tea dance tango.

Tea as a plant

The botanical name of tea was not always straightforward. At present, fixed one name Camellia

sinensis and two subspecies sinensis (China Tee) and assamica (Assam-Tee). 
Modern stores often comes tea grown from hybrids sinensis and assamica. 
Tea, as well as many gifts of nature, contains a large number of required our body substances: caffeine (tones), tannin (stimulates the activity of the brain), antioxidants (found in green tea), vitamins, and more. 
Tea, as well as coffee, harvested by hand. Only the top two frustrated young escape from the kidney. And they will be green or black tea - depending on the subsequent processing. 
After collecting the leaves are placed in the shade and dried, and then wound (other than white). This process can be carried out by hand or in special installations. During this processing of the tea leaf is allocated juice. It is this juice gives rise to the main stage of the "birth" of tea - fermentation (oxidation of the substances found in tea juice). The higher the degree of fermentation - the darker the shade of tea when brewed. This process can last from several hours to several years (for example, are specific types of Puer, which, like a fine cognac, is characterized by the number of years). The final stage is the drying of tea (or broiling) to eliminate moisture. 
Kinds of tea:

• green tea.
• White tea (fermented);
• Puer (postfermentirovanny tea);
• oolong (semi-fermented tea, brown tea);
• red tea (fully fermented black tea);
• flower and tea with spices;
• flavored green and black.