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Ka Fei

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What is Ka Fei?


Ka Fei

Ka Fei (scientific name: Coffea arabica), also known as coffee tree, Arabica and etc., is the national flower of Yemen. Before the 6th century AD, Yemen was called Arabia, so the coffee trees transported from it to other places were also called Arabica coffee trees. The name of coffee is derived from the Arabic word "Qahwah", which means plant drink. Later, coffee spread to all over the world, and it was named after its place of origin, a little town from Ethiopia called Kaffa. It was not officially named after "coffee" until the eighteenth century. Kaweh means strength and enthusiasm. Tea, coffee, and cocoa are known as the world's three major beverages.


In plant taxonomy, it is an evergreen shrub of Rubiaceae. Lateral branches extend horizontally, opposite, sometimes in whorls of three branches; single leaves, opposite, 2-10 flowers are clustered in leaf axils, the drupe of the fruit is oval, primary fruit is dark green, yellow-red or purple-red when mature. The fruit of Kafei is formed by the outer skin, pulp, endocarp, silver skin, and the innermost seed, coffee bean, wrapped in the above layers. The seed is located in the center of the fruit, and the parts other than the seed are almost useless. Daily coffee beverage is made from coffee beans brewed in various utensils. The coffee beans talked here refer to the nuts within the fruit of the coffee tree, which are later on baked by proper roasting methods.

Types of Ka Fei



CoffeaarabicaL., shrub or dungarunga , 4-7m high. Old branches are off-white, with enlarged nodes; branches opposite, rarely 3 branches in whorls. Leaves, opposite; petioles 8-15mm long; stipules broadly triangular, born on young shoots with subulate long tips, and on old branches with tips, 3-6mm long; leaves thin leathery, ovate-shaped Needle-shaped or lanceolate, 6-14cm long, 3.5-5cm wide, apex long and acuminate, base cuneate or slightly pointed, margin wavy or shallow wavy, both sides glabrous. Several cymes clustered in leaf axils; total pedicels absent or very short; bracts connate at base; pedicels 0.5-1.5mm long; calyx tube-shaped, 2.5-3mm long, apex truncated or 5-dentate; corolla white, long Varies with varieties, usually 10-18mm, apex 5-lobed, rarely 4 or 6-lobed, lobes longer than corolla tube; anthers 6-8mm long, exposed; style 12-14mm long, stigma 2-lobed. Berries ellipsoid, 12-16mm long. Seeds bulge dorsally, 8-10mm long. The flowering period is from March to April, and the fruit ripening period is from September to November.


CoffeacanephoraPierreexFroehn, also known as: medium-grain coffee. The difference between this species and CoffeaarabicaL. is that the leaves of CoffeacanephoraPierreexFroehn are 15-30cms’ long, 6-12cms’ wide, and the apex is acute or broad and acute. Fruit ovoid spherical, nearly equal in length and width, both 10-12mm.


CoffealibericaBul1.exH1en is also known as large-grain coffee. The difference between this species and CoffeaarabicaL. is that the leaves are larger, 15-30cms’ long, 6-12cms’ wide, with broad and sharp apex, and there are often some short tufts of hairs in the pits in the axils of the veins on the back of the leaves. Fruit broadly oval, 19-21mms’ long, 15-17mms in diameter.

Growth environment of Ka Fei

Native to tropical Africa.

Africa, Indonesia, and Central and South America are the world's three major coffee growing regions.

Harvest and processing of Ka Fei

Harvesting and storage

Coffee can be harvested when the fruit skin starts to turn red. The fruit-picking period varies with the species. The small-grained species are harvested from September to November, and the fruits’ full ripe time is from September to October; the medium-grained species are harvested from November to June of the following year, and the fruits’ full ripe time is from February to April.


1.Drying method

After the fresh fruit is sun-dried or dried, use a sheller to remove the peel and seed coat, and sieve to remove impurities.

2.Wet method

This method is used on large-scale production. Peel the fresh fruit with a peeling machine, separate the bean grains and the peel, then soak the peeled bean grains in water to realise degumming, then wash and dry, and finally remove the seed coat to obtain commercial coffee beans.

Ka Fei TCM

Medicine part

It is the seed of small-grain(CoffeaarabicaL.), medium-grain(CoffeacanephoraPierreexFroehn) and large-grain(CoffealibericaBul1.exH1en) Coffea fruit of Rubiaceae plants.


Warm in nature, bitter, Astringent, sweet and bland.


Enter Heart, spleen, stomach, liver meridians


Caffeine helps improve alertness, sensitivity, memory and concentration.


Kafei has the effects of refreshing; Diuretic; Stomach invigorating. Mainly used to treat on mental fatigue and loss of appetite.


Oral administration: grind into powder and decoct, 6-10g.


1.Remember that coffee should not be taken together with tea or milk. Because milk is high in phosphorus, it can affect the absorption of iron. Tannins in tea and coffee can reduce iron absorption by 75%. It should be taken with warm water.

2.Do not drink coffee on an empty stomach, because coffee can stimulate gastric acid secretion, especially people with gastric ulcers should be more cautious.

3.Tannins in tea and coffee reduce calcium absorption. Therefore, the best time to drink tea and coffee is between the two meals.

4.After pregnant women drink a lot of caffeinated beverages and foods, symptoms such as nausea, vomiting, headache, and rapid heartbeat will appear. Caffeine also enters the fetus through the placenta and affects fetal development.

5.Many doctors believe that pregnant women who drink 1 to 2 cups (6 to 8 ounces per cup) of coffee, tea or carbonated beverages a day will not affect the fetus. But for the sake of prudence, it is best for pregnant women to avoid drinking it. Caffeine can lead to increased miscarriage rates, so better drink decaffeinated beverages.

6.People who want to lose weight should not drink too much coffee. Common coffee mates contain quite a lot of milk, sugar and fat. Coffee itself may stimulate the secretion of gastric juice and promote food digestion and absorption. Not will it help lose weight, it only make people heavier.

7.Children should not drink coffee. Caffeine can excite children's central nervous system, interfere with children's memory, and cause children's ADHD.

8.Strong tea, coffee, and carbonated beverages are also risk factors for peptic ulcer disease.

9. Cause more trouble when nervous. Caffeine helps improve alertness, sensitivity, memory and concentration. But drinking more coffee than you are accustomed to can produce a stimulant similar to having the same dose, which will cause nervousness. For people prone to anxiety disorders, caffeine can exacerbate symptoms such as sweaty palms, heart palpitations, and tinnitus.

10.Increase high blood pressure. Because of its analgesic effect, caffeine is often compounded with other simple analgesics. However, if you take a lot of it for a long time, under the situation that you already having high blood pressure, using a lot of caffeine will only make your situation worse. Because caffeine alone can increase blood pressure, if emotional stress is added, there will be a dangerous multiplier effect. Therefore, people at risk of high blood pressure should especially avoid drinking caffeinated beverages when work pressure is high. Some people who have the habit of drinking coffee all year round think that they are immune to the effects of caffeine, but this is not the case. A study shows that after drinking a cup of coffee, the time span of high blood pressure can rise for up to 12 hours.

11.Induce osteoporosis. Caffeine itself has a good diuretic effect. If you drink a lot of coffee for a long time, it is easy to cause bone loss and have an adverse effect on the preservation of bone mass. For women, it may increase the threat of osteoporosis.

Chemical Composition

Main Ingredients


It has a particularly strong bitter taste and stimulates the central nervous system, heart and respiratory system. As a result, a moderate amount of caffeine can help reduce muscle fatigue and promote the secretion of digestive juice. Because it promotes kidney functions, it has a diuretic effect and helps the body excrete excess sodium ions, but taking too much can lead to caffeine poisoning.


After boiling, the tannin will break down into pyrosic acid, so the taste of coffee that has been brewed for too long will deteriorate.


The most important of these are acidic fats and volatile fats.

Acidic fats

Fats that contain acids, the strength of which varies with the type of coffee.

Volatile fat

It is the main source of coffee aroma, and it is a kind of substance that emits about forty kinds of aroma.


The main source of calories, but the proportion is not high in coffee. Most of the protein in coffee powder will not dissolve out when brewing coffee, so the intake is limited.


Green coffee beans contain about 8% of sugar. After roasting, most of the sugar will be converted into caramel, which makes the coffee brown and combines with tannins to produce sweetness.


The fiber of green beans is charred after roasting, and combines with caramel to form the color of coffee.


Coffee Contains a small amount of lime, iron, phosphorus, sodium carbonate and etc.

Coffee Nutrition List

Every 100 grams of coffee beans contains 2.2 grams of water, 12.6 grams of protein, 16 grams of fat, 46.7 grams of sugar, 9 grams of cellulose, 4.2 grams of ash, 120 mg of calcium, 170 mg of phosphorus, 42 mg of iron, 3 mg of sodium, and vitamins B2 0.12g, Niacin 3.5mg, Caffeine 1.3g, Tannin 8g. And every 100 grams of coffee extract contains 99.5 grams of water, 0.2 grams of protein, 0.1 grams of fat, 0.1 grams of ash, traces of sugar, 3 mg of calcium, 4 mg of phosphorus, 2 mg of sodium, 0.01 mg of vitamin B2, and 0.3 mg of niacin. Dissolve 10 grams of coffee in hot water, the content of caffeine is 0.04 grams, and the content of tannins is 0.06 grams.

Ka Fei benefits

1. Caffeine helps improve alertness, sensitivity, memory and concentration.

2. Because of its analgesic effect, caffeine is often compounded with other simple analgesics.

3. Caffeine itself has a good diuretic effect.

4. Coffee contains certain nutrients. The niacin in coffee contains vitamin B, which is much more in roasted coffee beans. And there are some nomadic fatty acids, caffeine, tannic acid and etc.

5. Coffee is good for skin. Coffee can promote metabolic function, activate digestive organs, and has a great effect on easing constipation. Taking a bath with coffee powder is a kind of therapy to lose weight.

6. Coffee can alleviate hangover. Drinking certain amount of coffee after drinking will quickly oxidize acetaldehyde transformed from alcohol, decompose it into water and carbon dioxide and discharge it out of the human body.

7. A cup of coffee a day can prevent gallstones. For coffee contains caffeine, which stimulate gallbladder contraction and reduce the cholesterolin the bile, so gallstone is not so easily to be formed.According to the latest discoveries, males who drink two to three cups of coffees every day, the probability of having gallstone is lower than 40%.

8. Drinking coffee often can prevent radiation damage. Radiation damage, especially electrical radiation, has become a prominent type of pollution.

9. The influence of coffee on health care. Coffee has many functions, like anti-oxidation and heart protection, strengthening muscles, bones, waist and knees, promoting appetizing and digestion, reducing fat and accumulation, sharpening orifices and removing dampness, promoting blood circulation, removing stasis and wind, relieving spasm and etc.

10. The influence of coffee on mood. Experiments show that absorbing 300mgs’ caffeine (about 3 cups of brewed coffees) a day can greatly improve people’s alertness and mood.

Ka Fei side effects

In the case of long-term intake, If overuse, large doses of caffeine is a drug that can lead to "caffeine poisoning". Caffeine intoxication includes addiction and a range of physical and psychological adverse effects, such as nervousness, irritability, anxiety, tremors, muscle twitching (hyperreflexia), insomnia, and heart palpitations. In addition, because caffeine can stimulate gastric mucosa and increase gastric acid secretion, continuous high-dose intake can cause peptic ulcer, erosive esophagitis and gastroesophageal reflux disease.

Four caffeine-induced psychiatric disorders validated by the 4th edition of Diagnostic and Statistical Manual of Mental Disorders include caffeine hyperarousal, caffeine anxiety, caffeine sleep disorders, and other caffeine-related disorders.

How to take Ka Fei?

1.Don’t drink coffee on an empty stomach, and eat some bread. Two to three cups of coffee a day is the most appropriate, which can help ease and stabilize the nervousness at work.

2.When drinking coffee, no matter hot or cold, you should drink some plain water before hand. In doing so, first, it can remove the bad breath, so as to taste the coffee better; second, because coffee has a diuretic function, drinking plenty of water can increase urination and protect kidney function.

3. Drinking coffee while it is hot is a must, even in the hot summer season, because the tannin in coffee is easy to change while cooling. As a result, the taste will turn sour and the flavor of the coffee will be largely affected.

How to choose Ka Fei?


When purchasing coffee beans

The freshness of beans is the most important factor affecting the quality of coffee brewing, because the avidity of coffee beans is hidden in its smell. Fresh coffee beans are like a can of cola full of bubbles and full taste. You can smell a lively and pleasant aroma the moment the bag is opened.


Put the coffee beans close to your nose, and then smell deeply, you can get the aroma of the coffee beans clearly, which means the coffee beans are fresh enough. On the contrary, if the aroma is weak, or a greasy smell has begun to appear, it means that the coffee beans are not fresh at all.


Check the shape of the coffee beans. Fresh and high-quality coffee beans are round, big, plump and shiny. Otherwise, they are incomplete and broken, with different shapes.


If the coffee beans are fresh enough, it should be easy to shell, and there will be a crunchy sound and feel. If not fresh, you will find yourself taking a lot of effort to shell a bean.


Put the beans in your mouth or press lightly with your hands. The fresh beans have a crisp texture, and smells fragrant when opened. Pinch squeeze with your hands to feel whether it is solid.


Take one or two coffee beans and chew, it should be crisp with fragrance on the teeth and cheeks, indicating that the beans have not been affected with damp.

When tasting coffee


Cover the cup with your hand, take a deep breath, and let the aroma naturally rush into your nose to see whether it is intoxicating.

The colour

There are always nuances in the color of the coffee. The best of them are a deep brown, rather than pitch black.

How to buy Ka Fei?

Native Chinese supply factory sale  Ka Fei, if you are interested in Kafei, coffee, coffee beans or best coffee, please fill below form, we will contact you within 24 hours.
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