What is the difference between green tea and black tea? Which is healthier?

Green tea and black tea are both teas we often drink. In fact, the difference between the two teas is not very big in nature. Drinking tea correctly has many benefits for the body. However, which one is better and healthier, black tea or green tea? These two teas have their own advantages. It depends on which one you like more. Now, let's learn about the relevant knowledge of green tea and black tea with Encyclopedia Knowledge Network!

Contents of this article

1. What is the difference between green tea and black tea?
2. Which is healthier, green tea or black tea?
3. What are the benefits of drinking green tea?
4. Notes on drinking tea

What is the difference between green tea and black tea?

1. Different processes

There are big differences in the production process between black tea and green tea. Black tea is a fully fermented tea with a fermentation degree of up to 80%~90%. It is not withered, but directly withered, rolled and cut before being fully fermented. Green tea is not fermented at all during production. It is made after withering, rolling and drying after picking.

2. Brewing water temperature

The water temperature for brewing green tea is around 80℃, especially for the tender green tea buds, which are rich in vitamin C and will not be destroyed if the water temperature is appropriate. For brewing black tea, boiling water at 90~100℃ is required, so that the tea flavor and effective nutrients of black tea can be brewed out.

3. Tea soup color

Green tea leaves are bright green. When brewing, the tea soup is always green, and it remains green over time, but the color will deepen. Black tea is dark and moist. It is light brown when just brewed, and the color of the tea soup darkens to brown or brown-red after a period of brewing.

4. Different effects

Black tea is sweet and warm in nature, and contains a lot of protein. Drinking black tea can make people feel warm all over, and has the effects of refreshing thinking, relieving fatigue, aiding digestion and removing greasiness. Green tea is unfermented, rich in natural substances, and has anti-aging, anti-cancer, anti-cancer, and sterilization effects.

5. Green tea has a more artistic look than black tea.

Green tea is usually brewed in an uncovered glass cup, so that one can appreciate its graceful dance up and down and feel the seasonal beauty. It is full of artistic perception and is the most aesthetic type of tea.

6. Compared with green tea, black tea is more internationalized.

Since the late 16th century and early 17th century, when Wuyishan Zhengshan Xiaozhong began to set sail for Europe, black tea has been the most successfully "internationalized" of China's six major tea types. It is also the most internationally accepted and widely spread tea type.

7. Different taste

The taste of green tea and black tea is different, because green tea retains more of the original aromatic oil in the tea leaves during processing, so it smells stronger than black tea. Black tea has an additional fermentation process, which solidifies the acid in the tea leaves, and does not have the strong astringent taste of green tea.

Which is healthier, green tea or black tea?

Tea is a relatively healthy drink, and people generally think it tastes good. However, this "tasty" is just an experience, and different people may have different ideas about the same tea.

Among them, green tea contains more theanine, so the taste is fresher and more fragrant, and the caffeine and tea polyphenols in green tea will not combine together, so the bitterness and astringency produced are separate, so that bitterness and astringency will not be produced when brewing.

Black tea, on the other hand, is a tea with a more positive taste. Most of the tea polyphenols in it have been converted into theaflavins and synthesized with caffeine, making the bitterness less obvious. Therefore, it is more popular.

Both types of tea have their own advantages. In short, you can choose according to your personal preference. However, if a person's gastrointestinal function is sensitive, it is not suitable to drink green tea on an empty stomach. Relatively speaking, the irritation of black tea is relatively weaker.

What are the benefits of drinking green tea

1. Delay aging

Green tea contains anti-aging antioxidants. Because the body produces a lot of free radicals during metabolism, it is easy to cause aging of the body and cause cell damage. Drinking green tea properly can effectively remove excess free radicals and delay aging. The catechins in green tea can significantly increase the activity of SOD and remove free radicals.

2. Lowering blood lipids

Animal experiments conducted by scientists have shown that catechins in tea can reduce total cholesterol in the blood. Human experiments have shown that catechins can inhibit platelet aggregation and inhibit atherosclerosis. The flavonoids contained in green tea have antioxidant effects, can prevent platelet aggregation, and reduce the incidence of cardiovascular diseases.

3. Skin care

Tea polyphenols are a water-soluble substance that can clean facial oil, tighten facial pores, and has the effects of disinfection, anti-aging, and reducing the damage of ultraviolet rays to facial skin.

4. Refreshing

The caffeine contained in green tea can stimulate the body's central nervous system, improve the excitement of the cerebral cortex, and play a refreshing role.

5. Diuretic

The caffeine contained in green tea can stimulate the kidneys, promote rapid excretion of urine, and improve kidney function. Caffeine can also eliminate excess substances in the urine, such as lactic acid produced by the metabolism process, which can help the body recover from fatigue as soon as possible.

6. Reduce the health hazards of smoking

Cigarettes contain a lot of nicotine, tar and other toxic alkaloids, which directly invade the human body through smoke. When the toxic substances reach a certain concentration, they will produce toxic reactions in the body, causing chest pain, coughing, headache and dizziness. You might as well drink a cup of strong tea, which contains caffeine, which can slow down the absorption of nicotine and reduce the harm of nicotine to the body.

Notes on drinking tea

1. Avoid drinking tea that has been brewed for a long time

Any kind of tea should not be soaked in water for too long, because the tea soup will be too concentrated after soaking for a long time, or some substances that are not easily soluble in water will be leached out, which will have a bad effect on the body.

2. Avoid drinking overnight tea

After brewing tea leaves for a long time, they will breed and multiply a large number of bacteria, which will irritate the stomach and intestines and cause inflammation just like rotten food. To be precise, it is not recommended to drink tea that has been left for a period of time.

3. Avoid drinking cold tea

Tea should be drunk warm. Cold tea can cause coldness and phlegm. Long-term drinking will reduce gastrointestinal immunity and stimulate dampness and coldness. Especially those who have rheumatic bone pain, menstrual pain, gout, chronic digestive tract diseases, gastritis, enteritis, migraine, pharyngitis or low immunity should not join in the fun.

4. Avoid drinking strong tea

Strong tea contains a large amount of stimulating caffeine, theophylline, etc. Drinking too much can cause insomnia, headache, tinnitus, heart discomfort and damage to the stomach and intestines.

5. Avoid drinking hot tea

Too hot tea can cause strong irritation to the mouth, throat, esophagus and stomach. If the temperature of the drink is over 62℃, it is easy to damage the stomach wall, which can lead to stomach problems and even mouth cancer. Therefore, it is better to wait for the tea to cool down before drinking it.

6. Avoid drinking tea on an empty stomach

Drinking tea on an empty stomach will affect the lungs, stimulate the spleen and stomach, and thus cause loss of appetite and indigestion.