This content is also available in: Vietnamese
Hot or cool tea, which one cools you down?
A British research centre chose a very hot day (40oC) to conduct an experiment in which different beverages were consumed to draw comparisons and see if tea can help your body cool down.
The results proved that those who consumed soft drinks, icy beer, and ice cream could reduce the heat on their skin very fast and cool down their stomachs and colons. However, follow-up tests indicated that the overall temperature leveled off inconsiderably, dropping by 1-1.2oC at best. Those who consumed hot tea had their physical temperature drop 1.5 – 2oC. This group may have found it hard to feel cool instantly, but once the heat leveled off, they felt more comfortable. The length of time for the body to feel cool was five minutes for those who drank cold tea and more than 15 minutes for those who drank it hot.
This result made everyone claim “the best drink to cool you down is hot tea.”
According to analysis, hot tea is capable of heat reduction because it enlarges the pores and expands the sweat glands making it easier to perspire and reduce the body’s overall temperature.
Why is frequent intake of tea able to prevent cerebrovascular diseases?
According to experts, chemical elements in tea, combined with the blood clotting solution in our bodies, forms a compound that prevents radical albumin fibers from transforming into albumin fibers. These elements also help reduce the stickiness of platelets and thus prevent the clogging and contracting of arteries. Microelements contained in tea leaves are capable of neutralizing cholesterol absorption and body fat accumulation. They reduce the fragility of veins and keep cerebral veins in a healthy state, thus helping to reduce cerebrovascular diseases.
Are tea leaves helpful in curing insomnia?
Some experts say ‘yes.’
They advise combining tea leaves with an Asian herb called Zizyphus jujube Lamk. Every day before 8 a.m., drink tea made from 15 g of tea leaves and boiling water. Before going to sleep, apply boiling water to 10 g of roasted Zizyphus mauritianaLamk powder and drink. Three to five days of continual use should yield a positive outcome.
Tea leaves can keep our mind sane and our moods lifted because the caffeine in tea leaves stimulates the senior central nervous system and boosts cortical activity. This helps our mind function more flexibly, and drives away tiredness.
Roasted Zizyphus jujube Lamk has been proven to nurture and stabilize our mentality. As noted in medical books, Zizyphus jujube Lamk’s fragrance permeates our inner spirit and bolsters our mind. Those with blood wounds or an overloading of the intellect that results in tiredness, fear, arrhythmia, anxiety, bewilderment, forgetfulness, and excessive sweating should consume Zizyphus jujube Lamk.
This remedy employs tea leaves to keep our mind sane and productive during the day, and Zizyphus jujube Lamk to nourish our hearts for a sounder sleep at night. A timely dose helps combat insomnia.
To use this curative method, take note that tea should be consumed in the early morning before 8 a.m. Roasted Zizyphus jujube Lamk powder must be served with boiling water not tea.
What are the benefits of watching TV while drinking tea?
A TV generates radiation from the fluorescent panel that can’t be detected by the naked eye. This is detrimental to our health. If sitting close and watching for a long time, the radiation may do harm to the blood-making organism of the human body. Tea leaves contain elements to combat radiation and help protect our blood-making organism. A normal person just needs to drink several cups of tea to eliminate the effects of indiscernible radiation from the TV to his or her body.
Watching TV continually for 4-5 hours may reduce vision temporarily by 30 per cent. Tea leaves are rich in carotene, which can easily transform itself into vitamin A after being absorbed physically. Vitamin A supplies nutrients to your retinas and helps enhance vision in the dark. Watching TV while sipping tea can not only eliminate the effects of radiation from the screen but protect and boost your vision.
What is the best way to make and drink tea?
- Use boiling water at about 70-80oC to process tea without covering. This preserves the tea’s quality and when water is added a second or third time it does not taste flat. An overly high temperature of water destroys beneficial elements in tea.
- Never drink the tea at once. Some people love drinking a cup of tea before adding more water, which affects the taste of the second and third cups. It is best, after drinking the first processed tea water, to leave one third and add boiling water. After drinking two thirds, add boiling water again.
- Don’t process tea too many times. Only add water three to four times. The first water can dilute 30 per cent of the elements in tea. The second water dilutes 50 per cent, the third water dilutes 10 per cent and the fourth one can dilute only fice per cent. As a saying goes: “The first water is bitter, the second nutritious, the third pure and the fourth tasteless.” A pot of overly processed tea releases harmful elements into the water and this is not good for your health.
- Don’t drink tea left overnight. After eight hours, harmful microelements in tea such as tannin increase. In hot weather and at high temperatures, bacteria proliferates rapidly and the tea becomes unhealthy.
- Don’t drink tea immediately after a meal. If you have tea after a meal, your gastric acid is diluted and it is not helpful for the digestion of food. It even stimulates gastric muscosa to cause inflammations. Hence, it is best to drink tea one hour after a meal.
- The amount of tea should be suitable. Too little tea makes it tasteless while an excess makes it dense and harmful.
- Never take medicine with tea water. Tannin in tea condenses protein, iron, minerals and several biological alkaline elements. Taking drugs with tea affects their benefits. The caffeine in tea reacts to the drugs and can cause insomnia or hypertension. Also avoid drinking tea after taking a prescribed dose.
Because of physical heat, many people drink a lot to quench their thirst. This is possibly harmful. An excessive intake of water will make your belly heavy and sluggish – scientifically it is called “water stagnation” and it makes us unwilling or unable to eat. Drinking tea with ice may cause your stomach to be cold and result in diarrhea and liquid excretion. If the symptoms persist, it will lead to “impaired colons and spleens.”
If thirsty, you should drink moderately so that your stomach and spleen can properly metabolize water flows and yield new fluids. The new fluids will quench your thirst.
You should keep tea long enough in your mouth to reduce dry throat.
Water is absorbed into the colon gradually, then enters the blood. Torrential drinking makes most of the water pour down into your rectum rather than your blood, which causes diarrhea and liquid excretion.
Why is dense tea not recommended?
Dense tea contains high volumes of tannin and caffeine, so drinking it frequently will enhance tryglycerid levels in your blood and cause atherosclerosis and angina pectoris.
Tannin in tea will condense proteins and vitamins, and hinder the generation of gastric juices, stimulating intestinal gastric muscosa and causing the functional imbalance of stomach, intestines, indigestion and constipation. This is negative for patients with diminished stomach or intestine function.
Tannin in tea can also combine with other elements in foods, forming condensed and insoluble residue, which adversarily affects the absorption of iron in your bod. It’s quite dangerous to have tea after a meal. A report pointed out that 15 patients were hospitalized because of anemia caused by insufficient iron as a result of frequent consumption of dense tea. Even taking iron pills for two months did not help. Ceasing to drink dense tea put red blood cells back to a normal level after 15-30 days. Drinking dense tea over a long period of time gradually results in inertia. In particular, it should be avoided by the elderly and people with diseases.
Why should we not drink tea immediately after a meal?
After entering your stomach, foods require solutions and gastric juice to be transformed into nutrients. If separated from gastric juice, foods can’t be digested with the level of 0.5 per cent chlohydric acid in gastric juice. If you drink tea immediately after a meal, the gastric juice is diluted. Likewise, drinking tea while hungry will also have gastric juice and digestive fluids diluted and stimulate gastric muscosa to cause stomach and intestinal ulcers. Drink tea at least one hour after a meal.
Should people with constipation limit their tea consumption?
Tea leaves are rich in tannin, which reduces the squeezing functions of intestines and condenses proteins, enzymes, iron and metal ions. This makes excretion dry and eventually leads to constipation or makes the condition worse. The longer tea leaves are processed the more tannin is released, making it more harmful.
Decades ago in the countryside, many tea vendors were available to passers-by. When wanderers from afar were hot, thirsty and sweaty, vendors offered them a cup (not glass) of fresh hot tea from the tea blaze by their side. Blowing and sipping, wanderers felt uplifted and cheerful, to the extent they forgot all their weariness (perhaps because of the rural landscape?).
A group of British scientists conducted an experiment to compare the effects of drinks: hot tea, cool tea, soft drinks, Coca Cola and juice and measured the underskin temperature. Soft drinks put out thirst faster than tea did. The lips, mouths and bellies grew less hot, but the facial and skin temperature stayed the same. Nine minutes after drinking cool tea, physical temperatures dropped by 0.5 to 1oC. Hot tea, meanwhile, caused physical temperature to drop by 1.5 – 2oC. Tea drinkers found themselves cooled down more slowly, but longer and more pleasantly.
Thus, a conclusion can be drawn:
- Tea from fresh leaves is better than dried green and black tea because of its rich antioxidants and anti-ageing elements.
- Caffeine and flavonoids are more soluble in hot water, hence hot tea proves more helpful.
- Hot tea reduces physical heat more and longer than cool tea.
How to identify fine tea
Tea can be evaluated by look, color and inner substance.
On the outside, good tea leaves are tougher, spawning sharp buds. The leaf edges are tough, slightly flat and evenly twisted. If tea leaves are pale, swelling on one end while sharp and darker, with protruding ribs on the other, their quality is modest. If leaves are broad and feature numerous shredded leaves, the tea is coarse. Featherlight leaves with protruding ribs indicate that tea is not fine.
Lush green and lustrous tea leaves indicate the tea is fine (fine red tea is lustrously black and smooth). Yellow, dry and dark leaves mean the tea is old.
Substances of tea can be detected through its fragrance, water color, taste and residue.
Fine tea has a mild and long fragrance. Although it tastes mild and bitter at first, the taste will promptly turn passionately strong, sweet and harmonious. Tea with flat tastes or substances and having no fragrance or other flavors is not fine.
The water color of the processed green tea should be fresh green, while red tea is fresh pink and Oolong tea is orange.
Red tea tastes pure and delectable. Green tea is sweet and strong, and Oolong tea is enchantingly fragrant.
The leftovers of tea after processing is called the residue. Dark copper red tea residue proves a fine quality, similar to the green residues of green tea.
Authentic tea leaves have very conspicuous grid-shaped ribs. The main rib stretches two-thirds of a leaf and curls upwards in arc shape, connected to the upper rib. The rear surface of the leaf is furry and scantly serrated. Tea leaves with inconspicuous, collateral ribs stretching straight to the edges, two furry surfaces and large, rough serrated edges are fake.