scientific name

The small seed is small coffee, the middle seed is medium coffee and the big seed is coffee.

Another name

Small-grain species are also called Arabian species, medium-grain species are also called Ganfula species, and large-grain species are also called Liberian species.

There are two common types: Arabica and Robusta.

Family and genus

Rubiaceae (Rubiaceae)

Ecological and biological characteristics

Coffee is a shallow-rooted crop, with branches at all levels, secondary branches and straight branches. The trunk growth has obvious apical advantage and the stem is straight. The leaves are opposite, the single leaf is trifoliate, green, leathery and shiny, oblong or oval, and the shape of leaf margin, tip and vein varies with varieties and shading conditions; Flowers axillary, cymes, pedicels short, white and fragrant; Oval berries are red and purplish red when they are ripe, and the navel (top) shape of coffee fruits varies with varieties. Coffee has the characteristics of many flowers and concentrated flowering. Flowering is greatly influenced by climate, especially rainfall and temperature. The time and development speed of coffee fruit from flowering to maturity vary from species to species.

It is required that the soil is loose, fertile, deep and well drained, and the pH value of 6 ~ 6.5 is most suitable for root system development and plant growth. In the development of the system, the habit of liking calm wind, cool, cloudy or semi-cloudy and wet has been formed.

Domestic and foreign distribution

Coffee is native to tropical areas in northern and central Africa and has been cultivated for more than 2,000 years. At present, the main coffee producing areas in the world are Latin America, Africa and Asia. According to statistics, coffee is grown in 76 countries around the world, and the main consumption areas are Europe and the United States. Coffee from China was first introduced to Taiwan Province Province in 1884. 1908, overseas Chinese brought back large and medium-sized seeds from Malaysia to Hainan Island. At present, the main planting areas are distributed in Yunnan, Guangxi, Guangdong and Hainan.

function

Caffeine can be extracted and used as narcotic stimulant, diuretic and cardiotonic in medicine. Coffee pulp can be used for brewing wine, vinegar, feed, fertilizer and fuel. Coffee is one of the three largest beverage crops in the world.

The origin of coffee

At present, there are so many kinds of coffee beans imported from all over the world that people have no choice. Here will introduce the main origin and characteristics of coffee beans as a reference for purchasing coffee.

■ Brazil (South America)

As the largest coffee producing area, all grades and types of coffee account for one-third of global consumption and occupy a place in the global coffee trading market. Although the natural disasters faced by Brazil are several times higher than those in other regions, its planting area is enough to make up for them.

There are many kinds of coffee here, but its industrial policy is rich and cheap, so there are not many excellent coffees, but it is a good choice to mix with other coffees. 、

One of the most famous is Santos coffee, which tastes mellow and neutral. It can be boiled directly or mixed with other kinds of coffee beans to make comprehensive coffee, which is also a good choice.

Other kinds of Brazilian coffee, such as Rio and Parana, can be produced in large quantities without much care. Although it tastes rough, it is a cheap coffee. Because they are distributed all over the country and have different solid quality, they have their own standards (No.2-No.8,1No.3-1No.9). Almost all arabica varieties have good quality and stable prices. The most famous is "Brazil Santos", which has been a necessity of mixed coffee since ancient times and is well known to the public. Recently, the evaluation of the "Elma Cup" is also very high.

● High quality bean: Sanduo No.2, size 18.

● Taste characteristics: light, sour and bitter, and soft.

● Best frying degree: medium frying degree.

■ Colombia (South America)

This output is the second largest coffee industry country after Brazil, and it is also the leader of Colombia Melde Group (Colombia, Tanzania and Kenya) (Note: Colombia Melde Group is one of the NYSE's classification of origin, along with Asa Melde, Anwar Shearabica and Robusta). The coffee beans grown in the famous producing areas such as Medellin, Manizares, Bogota and Armenia are all varieties of Anica, which are quite rich in flavor, stable in quality and price, and the roasted coffee beans are bigger and more beautiful.

It can be produced from low-grade products to high-grade products, and some of them are rare goods in the world, with mellow taste and people can't put it down.

● Top quality beans: Columbia Spremo/Aikeselen (larger than Spremo).

Taste characteristics: sour, bitter, sweet, strong, and the color is like brewed wine.

● Best frying degree: medium depth.

■ Mexico (Central America)

The main coffee producing area in Central America, where the coffee tastes comfortable and the aroma is charming. The selected Mexican coffees are Coatepec, Huatusco and Orizaba, among which Cotepe is considered as one of the best coffees in the world.

The coffee growing areas in this country are similar to Guatemala in the south in both geographical conditions and climatic conditions, so they are included in the scope of "Central America". The main producing areas are distributed in Goa Buick, Oaxaca and other states. Especially, the washed coffee beans from highland have excellent fragrance and full sour taste. The specifications are divided into Aldora(4000-4200 feet), Prima Labado(2800-3300 feet) and Boone Labado(2 1 000) according to the altitude. Most of the producing areas are sold to the United States.

● High quality beans: Aldora, Mexico

● Taste characteristics: large, sweet and sour, strong and fragrant.

● Best frying degree: medium depth.

■ Guatemala (Central America)

The central part of Guatemala is planted with world-famous high-quality coffee. Most of the coffee beans here are charcoal-roasted, with cocoa flavor, but slightly stronger acidity.

This is the most familiar coffee bean in Japan, and the first place of origin is located in San Marquez, near the mountains of Mexico. The second place of origin is Kaiser Denango, which is dystocia. There are other brotherly gangs, and antigone is also famous. Slightly sour and smooth, it is the best material for mixed coffee. Its classification is divided into seven grades according to altitude. The higher the place of origin, the more mellow it is, and the lower the place of origin, the lower the quality of coffee beans.

● High-quality coffee beans: SHB in Guatemala

● Taste characteristics: bitter and fragrant, with good taste.

● Optimum frying degree: depth

El Salvador (Central America)

It ranks alongside Mexico and Guatemala as the producer of Asa Meldo Group, and competes with other countries for the first and second place in China and the United States. Highlanders are big coffee beans of equal size, with rich fragrance and mild taste. It is also divided into three grades according to altitude: SHB (strict high growth) = highland, HEC (high growth middle) = central highland, CS (central standard) = lowland.

● High quality coffee beans: Salvador ·SHB

● Taste characteristics: sour, bitter and sweet.

● Best frying degree: medium depth.

■ Honduras (Central America)

The washed coffee beans in mountainous areas are well received, but the quality of coffee beans produced in lowlands is slightly inferior. Famous producing areas include Santa Barbara, Gracias, Comayaga in the east and Georgeca near Nicaragua. Coffee beans are medium to large in size and are characterized by mild taste. The quality products here are also divided into three grades.

● High-quality coffee beans: Honduras SHB

● Taste characteristics: sour and slightly sweet.

● Best frying degree: medium depth.

■ Costa Rica (Central America)

Coffee beans produced in high latitudes of Costa Rica are world-famous, with rich and mild taste, but extremely sour. The coffee beans here have been carefully treated, so there is high-quality coffee.

The famous coffee is produced in the central plateau, where the soil is composed of several layers of volcanic ash and dust.

The first-class fragrance is rich in acid and has a high evaluation. The producing area can be roughly divided into three areas: the Pacific coast, the Atlantic coast and the middle zone, and each area is graded according to the altitude. All coffee beans are quite large, especially those from the highlands along the Pacific coast. They are sour and sweet, and a new brand "kral Mountain" has appeared. Coffee beans in the lowlands along the Atlantic coast are sour but alcohol-free, and there is nothing special about them.

● High quality beans: kral, Costa Rica, Costa Rica.

Taste characteristics: moderate acidity and mellow.

● Best frying degree: moderate.

■ Cuba (West Indies)

Cuba is famous for producing sugar, tobacco and coffee. It is a republic composed of Cuba, the largest island in the West Indies, and other affiliated islands. /kloc-In the middle of the 0/8th century, the French introduced coffee from Haiti. Coffee beans are characterized by large, bright green and high quality coffee beans. According to the size of coffee beans, the grades are divided into ETL (special grade), TL (medium grade) and AL (ordinary grade). "Cridle Mountain" is Cuba's proudest high-quality large-grain coffee bean.

● High-quality beans: Mount Cuba Cristal.

● Taste characteristics: the taste is stable. Sour, bitter and sweet are balanced.

● Best frying degree: moderate.

■ Jamaica (West Indies)

Jamaica's national treasure, Blue Mountain Coffee, is perfect in all aspects. Just like wine, many wineries are now bought by the Japanese.

The Japanese have bought most Jamaican coffee in recent years, so it is difficult to buy it in the market. It is said that Britain has bought it for four years, and the spending power of orientals is really amazing.

Jamaica is a * * * republic composed of large and small islands located in the Caribbean. Coffee is all planted on the slope of Hengduan Island, and the origin can be divided into three areas: BM (Blue Mountain) and HM (Alpine) PW (plame Washed Coffee Bean), which is also the brand name of coffee. The ranking of quality and price is 1, 2 and 3, and the ranking of output is 3, 2 and 1. Among them, the flavor, fragrance, richness and sour taste of "Blue Mountain" are very general and highly appraised. Almost all products are sold to Japan.

● High-quality beans: blue mountains/high mountains.

● Taste characteristics: sour, bitter, sweet and fragrant.

● Optimum frying degree: mild to moderate.

Yemen (Africa)

Mocha coffee in Yemen was once all the rage, and there was a whirlwind of mocha around the world. Unfortunately, the good times did not last long. Under the political turmoil and unplanned planting, the output of mocha is very unstable.

Having said that, mocha is still the soul figure used to match other coffee beans or integrated coffee beans.

Yemen, commonly known as Arabia, is the birthplace of Arabica. It used to be all the rage in the name of "mocha coffee", but now the grand occasion is over. But its flavor, rich and mellow characteristics, such as alcohol, one is after-dinner coffee, which is quite popular with consumers. Along with the coffee produced in Brazil and Colombia, the three musketeers were chosen as the mixed coffee. Matari, produced in Barney matar, and Sanani, produced in Sanaia, are also quite famous. Jinmatari is also produced in Barney matar.

● Top quality beans: Jinma Tari

● Taste characteristics: slightly acidic with strong stamina and sweet taste.

● Best frying degree: medium to deep.

In addition to the above countries, coffee in some African countries is also quite famous. These countries are:

Ghana

Ivory Coast. Also known as IVORY COAST

Guinea

etc

The origin of coffee

The first coffee tree in the world was found in the Horn of Africa. Local indigenous tribes often grind the fruit of coffee, then mix it with animal fat and knead it into many spherical balls. These indigenous tribes regard these coffee balls as precious food for soldiers who are about to go out.

At that time, people didn't know what the excitement of coffee consumers was like-I didn't know it was caused by the stimulation of coffee. On the contrary, people think it is the religious fanaticism of coffee consumers. I think this drink is mysterious. It has become a special product for priests and doctors. Up to now, there are two main stories reflecting the process of coffee discovery.

According to a story, a herdsman who herded sheep noticed a phenomenon: his flock became extremely excited after eating the fruit of the wild coffee tree. Out of curiosity, he also tasted the coffee fruit. After taking a bite, he began to dance like those goats that were bumping around because of the coffee beans. What happened to the herdsmen happened to be hit by a group of monks. Therefore, whenever it is necessary to hold a religious ceremony at night, these monks make soup with coffee beans to keep themselves awake.

Another story goes like this: a Muslim dervish was driven into the desert by his enemies. In a state of insanity, he heard a voice prompting him to eat the coffee fruit beside him. He put the coffee cherries in water to soften them, but he didn't succeed because the coffee cherries were too hard. As a last resort, he had to drink the water that soaked coffee beans. In the end, the dervish survived in this way. When the dervish walked out of the desert, he felt that he could survive and get magical energy because of Allah's help. So, he kept telling this story to others and introducing this method of making drinks to others.

The spread of coffee

The cultivation of coffee began in the15th century. For hundreds of years, Yemen in Arabian Peninsula is the only coffee producing area in the world, and the market demand for coffee is very strong. In the Yemeni port of Moka, when coffee is shipped out, it usually needs strict protection. At the same time, Yemen has also taken various measures to prevent coffee saplings from being taken abroad.

Despite many restrictions, Muslim pilgrims who came to the holy city of Mecca secretly brought coffee seedlings back to their hometown, and coffee soon took root in India.

At that time, in Venice, Italy, there were countless merchant fleets trading perfume, tea and textiles with businessmen from Arabia. In this way, coffee also spread to the vast areas of Europe through Venice. Many European businessmen are getting used to drinking coffee. Later, in the streets of many European cities, coffee vendors appeared, and coffee quickly became popular in Europe.

The strong demand for coffee has laid a solid foundation for the rapid expansion of coffee in other regions outside the country of origin. In the17th century, the Dutch introduced coffee to their colony Indonesia. At the same time, the French began to grow coffee in Africa. Today, coffee has become the second largest commodity on earth after oil!

At present, coffee has become an indispensable drink in our life. How is the coffee quietly born in the quiet forest discovered by people and widely accepted around the world? Also, how to start practicing? Among countless coffee discovery legends, two legends are most talked about, namely "The Shepherd's Story" and "The Arab Monk".

/kloc-In the 6th century, there was a shepherd in Ethiopia. One day, he found his sheep suddenly jumping there. He felt very incredible. After careful observation, he realized that the sheep had eaten a red fruit.

So he took this fruit and gave it to the monks in the temple. All the people feel refreshed after eating it. It is said that this fruit has been used as a refreshing medicine since then and has been well received by doctors.

1258, Sheikh Omar, who was deported from his clan for a crime, wandered to Wasaba (located in Arabia), far from his hometown of Mocha, hungry and tired, and could no longer walk. When he was sitting on the root of a tree to rest, he found a bird flying, stopping on a branch and crowing with a voice he had never heard before.

When he looked carefully, he found that the bird opened its throat and made a wonderful crow after pecking at the fruit on the branch, so he picked all the fruits in that area and cooked them in a pot with water. After that, it began to emit a rich fragrance. After taking a sip, I not only felt delicious, but also felt physically and mentally exhausted. So he picked a lot of this magical fruit and cooked it into soup when he met a patient. Finally, because he did good deeds everywhere, people in his hometown forgave him for his crimes and sent him back to Mocha, praising him as a "saint".

All historians seem to agree that the birthplace of coffee is Kaffa, Ethiopia, and the name of coffee comes from Arabic "Qahwah", which means plant drink.

Later, when coffee spread all over the world, it was named "Kaffa" after its origin, and it was not officially named "coffee" until18th century.

The patented technology of instant coffee for daily drinking belongs to Nestle.

Chronicle of coffee

More than 65,438+0,500 years have passed since coffee was first discovered by a shepherd in the Ethiopian desert. The development of coffee is full of hardships and legends, and it is colorful 1500 years (the following is the chronicle).

In 500 AD, the shepherd Cadet first discovered the magical use of coffee;

In 525 AD, the first coffee tree was planted in Arabian Peninsula.

The first coffee shop was born in Constantinople 1475.

Coffee was introduced to Europe from Venice in A.D. 16 15.

1620 was introduced to North America.

In A.D. 1690, coffee was introduced to Asia from Mocha Port;

In A.D. 1723, French officer Decroux brought coffee seedlings to the United States.

Coffee was planted in Kenya and Tanzania in 1893.

In A.D. 1902, missionaries brought coffee seeds to Jukula, Yunnan;

In 2000, coffee became the top four drinks in the world, and 400 billion cups of coffee were consumed every year.

The efficacy of coffee

Alcohol or tobacco can make people feel intoxicated and stimulated, and caffeine can also make people feel excited. Caffeine can stimulate the central nervous system or muscles, restore muscles or fatigue, improve work efficiency, have a sober effect, and make the brain more active and sensitive.

On the other hand, it can also improve heart function, dilate blood vessels, have good blood circulation, have a calm headache and feel comfortable. And asthma can inhibit the excitement of parasympathetic nerve by stimulating sympathetic nerve. Other coffee also helps digestion, especially when eating too much meat, which can promote digestion and prevent gastroptosis. Because caffeine can break down fat, westerners must want to drink coffee after eating energy-enhancing food. Caffeine can not eliminate garlic flavor, but also contains betel nut, so coffee is an indispensable drink after taste compensation cooking.

In addition, coffee also has a deodorizing effect. Residues brewed with ground coffee can be dried in containers and used as deodorizers in refrigerators or shoe boxes. Sprinkling on the ashtray can also eliminate the smell of tobacco. And coffee can also be used to hide the taste. For example, instant coffee can be turned into a sweet and delicious meat dish if it is melted with boiling water and its taste is stained with meat.

Coffee contains a lot of caffeine, will it affect your health? Maybe some people will have such concerns. However, the amount of two or three cups of coffee is no problem. On the contrary, drinking coffee in moderation is effective for the body. Understand coffee correctly, so that everyone can drink coffee happily and enjoy coffee time!

Love and hate of drinkers

Recently, Professor A.P.Smith of the University of Bristol in the United Kingdom published his ten-year report, studying the influence of coffee on the brain, especially the influence of coffee on discrimination. Their discrimination and alertness were measured 30 minutes before and after drinking coffee. Smith found that after drinking a cup of coffee, they became more alert and more focused. Professor Smith said that coffee can really refresh you, especially when you don't get enough sleep. If you have a cold and have to concentrate on going to work or coping with exams during the day, drinking a cup of coffee will definitely promote your alertness and help you tide over the difficulties. Coffee will stay in the body for 2 to 5 hours, so coffee has a long-term refreshing effect. Further experiments show that the average person can absorb 300 mg (about three cups of brewed coffee) of caffeine every day, which will have the following effects on a person's alertness and mood. But when caffeine exceeds 400 mg (four cups), it will bring side effects, such as bad mood, irritability, aggression and trouble. If you only want to take polyphenols in coffee to resist oxidation, you only need to go to "fdecaf" coffee!

Studies have found that people who drink coffee are less likely to get Parkinson's disease. Scientists at the Veterans Management Medical Center in Honolulu, Hawaii, found that people who don't drink coffee are five times more likely to develop Parkinson's disease than those who drink more than five cups of coffee a day. Researchers have followed more than 8,000 men for 30 years, and their findings have been published in the Journal of the American Medical Association. Parkinson's disease (PD) is an senile disease with six kinds of pathological changes in the nervous system. Its typical symptoms include tremor, stiffness and decreased voluntary activities of limbs. It is not clear why researchers may reduce the risk of Parkinson's disease by drinking coffee. But they speculate that caffeine contained in coffee may play a role in preventing nerve cells that cause Parkinson's disease from being damaged. Scientists point out that their current results are preliminary and need further research to confirm. They stressed that it is too early to suggest drinking coffee as a treatment for Parkinson's disease.

Coffee and prevention of gallstones

Delicious coffee is a refreshing drink, and the latest research also found that every few cups of coffee can prevent gallstones. According to the latest issue of the Journal of the American Medical Association, researchers at Harvard University in the United States found that men who drink two or three cups of coffee are 40% less likely to have gallstones than men who don't drink coffee. If they drink more than four cups of coffee every day, the chance of gallstones will drop to 45%. However, decaffeinated coffee has no such effect. Only caffeinated coffee can stimulate gallbladder contraction and reduce cholesterol which is easy to form gallstones in bile. Other drinks, such as tea and cola, also contain caffeine. Because the caffeine content is lower than that of coffee, the same effect cannot be achieved.

Anti-oxidation and heart protection of coffee

In addition to refreshing, coffee also contains polyphenols, which not only has antioxidant effect, but also has cardiovascular protection function. Recently, the food chemistry seminar of the annual meeting of the American Chemical Society did have new scientific evidence to prove that coffee contains powerful antioxidants and has the function of protecting the heart and blood vessels. The study was conducted by Scranton University in Pennsylvania, USA. These polyphenols, sometimes called flavonoids, are powerful antioxidants that can resist oxidation and coagulate blood.

Coffee and Prevention of Radiation Damage

Radiation damage has become a prominent pollution and harm at present. Especially the radiation of household appliances: for example, people who operate the phone for a long time, microwave ovens and televisions at home. Especially for pregnant women, radiation has affected the health of the next generation. Reports in this regard are not uncommon. Indian scientists have found that coffee can protect laboratory mice from radiation damage and may have the same effect on humans. Researchers at the Baba Atomic Research Center in India found that 70% of the experimental mice injected with caffeine survived after 25 days after receiving high-dose radiation, which is usually fatal, while all the experimental mice that were not injected died. Kaye Bilgio, who led the study, said that this discovery may also apply to humans. He said: "Studies show that coffee may help prevent injuries."

Can coffee cause calcium loss?

In recent years, people in China have paid more and more attention to calcium loss and osteoporosis, and they are puzzled by coffee. As for the relationship between caffeine intake and osteoporosis, it is still under continuous study. At present, there is no direct evidence that caffeine can cause osteoporosis, but some studies have pointed out that caffeine can increase calcium excretion. Therefore, it is suggested that people who love coffee eat more high-calcium foods to supplement calcium, such as preparing cheese slices or cheesecakes with coffee, which can not only supplement calcium, but also make coffee more delicious.

Who is not suitable for drinking coffee?

Patients with cerebral hemangioma are not suitable for drinking coffee, and patients with heart disease should drink coffee without or with low caffeine, because caffeine will accelerate the heart rate and cause cardiac hypoxia. In addition, patients with skin diseases and stomach diseases should drink as little coffee as possible to avoid aggravating their illness due to excessive drinking. Diabetic patients should also avoid drinking coffee with too much polysaccharide, so as not to aggravate the condition. The US Food and Drug Administration (Fda) issued a statement advising pregnant or potential pregnant women to reduce caffeine intake. Because pregnant women metabolize caffeine about twice as fast as non-pregnant people in the second and third trimester, and caffeine will also enter the fetus through the placenta and flow into the baby through breastfeeding. In addition, many studies have failed to prove that moderate caffeine will have adverse effects on the fetus, and there is no medical report prohibiting pregnant women from drinking coffee. Pregnant women and breast-feeding women are still advised to be more cautious about caffeine intake. In short, if you find yourself unwell after drinking coffee, you should stop drinking coffee for a while, and then start from a small amount and change your drinking style.

Caffeine and coffee

Coffee is recognized as a healthy drink, but drinking coffee must be reasonable and scientific, which is beneficial to health, and it should be timely and moderate.

A drink after getting up in the morning is for refreshing, and a drink at work during the day can refresh you. Coffee can be a little stronger at this time. It is best to drink coffee after meals or in the evening. Coffee or tea has a refreshing effect, but it should not be used with meals and should be drunk after meals. Some friends like coffee very much, but they are afraid that they will get angry if they drink it often. We often see many people weak coffee. This way of drinking coffee is unhealthy. A cup of white water with coffee has two advantages: first, drink a mouthful of white water before drinking coffee to wash off the peculiar smell in your mouth, and then you will feel mellow. Second, because of the diuretic effect of coffee, drink more white water, increase urination and promote renal function. In this way, you can not only taste the delicious coffee, but also worry about getting angry. It's killing two birds with one stone.

When it comes to coffee, people think of caffeine, which is a mild stimulant in coffee. It can improve the sensitivity and attention of human body, accelerate the metabolism of human body, and improve the mental state and physical quality of human body. At present, caffeine has been found in about 60 kinds of plants, of which tea and coffee are the most well known.

Coffee contains caffeine, and whether it reacts to caffeine varies from person to person. For example, some people are allergic to pollen, while others are not suitable for eating seafood. And these two situations, for most people like you and me, will not have any impact. As for how much coffee to drink every day, in some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. So you can drink 4- 10 cups of instant coffee every day.

You can't drink too much coffee every day.

People often ask, how much coffee is excessive? In some coffee-consuming countries, people consume about 250 to 600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. Because the caffeine content in a cup of coffee (150ml) is generally:

-Ground coffee: about 80-90 ml.

—— Instant coffee: about 60ml.

In some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body. The caffeine content of a cup of instant coffee (about 150 ml) is generally about 60 mg, so drinking 4- 10 cups of instant coffee every day will not be excessive.

What effect does drinking coffee have on health?

Your main concern is whether the caffeine contained in coffee has an impact on health. In fact, caffeine is a mild stimulant in coffee, which can improve human sensitivity and attention, accelerate human metabolism, and improve human mental state and physical quality. At present, caffeine has been found in about 60 kinds of plants, of which tea and coffee are the most well known. In some coffee-consuming countries, people consume about 250-600 milligrams of caffeine every day on average. After repeated scientific research and analysis, this dose has no side effects on human body.

Finally, add a sentence: American research shows that women who drink 2 cups of coffee a day are more likely to get cancer.

Black coffee-the best health messenger

The most beneficial substance in coffee is caffeine. In various ways of drinking coffee, drinking pure black coffee can best retain beneficial ingredients and is most beneficial to health. Here are some of its functions:

Refreshing the brain-caffeine stimulates the central nervous system, refreshes the brain and improves work efficiency;

Appetizers-Caffeine stimulates gastrointestinal secretion of gastric acid to prevent gastroptosis.

Diuretic dehumidification-Caffeine can increase urine volume and promote renal function.

Promoting blood circulation and removing blood stasis-linoleic acid contained in coffee can hemolyze and prevent thrombosis, enhance vasoconstriction and reduce the probability of stroke.

Pingfei Pingchuan-Caffeine can inhibit parasympathetic nerve and reduce asthma attacks.

Deodorization-Caffeine contains tannin, which has a strong adsorption capacity for taste. If your home has just been renovated, make a pot of coffee indoors or put it indoors with cooked coffee beans, and the odor will be removed quickly.

Coffee can lose weight and resist aging-lightly roasted coffee contains more caffeine, which is beneficial to lose weight. Black coffee has antioxidant effect, which is helpful for anti-cancer and anti-aging.

Drinking coffee in moderation is good for human health. Usually, the human body can consume nearly 500 to 600 milligrams of caffeine every day, which is equivalent to about 5 cups of coffee. In this range, there will be no side effects. But the metabolism of pregnant women is a little slow, so drink less. Coffee is an indispensable healthy drink for us.