Dianhong tea also called Yunnan black tea is a kind of Gongfu black tea, produced in Yunnan Province, China.
“Dian” is a shortened form of Yunnan Province and “Hong” means “red”, but here means the “black” of “black tea”, so Yunnan black tea is called Dianhong tea. It is highly appreciated by tea experts at home and abroad for its outstanding quality.
1. History of Dianhong tea
In 1937, two people went to Yunnan Province to observe and investigate the production and sales of tea. They found that some mountains in Yunnan had natural conditions suitable for growing tea trees, so they began to grow and tried to invent a new black tea.
The period of trial production of black tea was a hard time. Since there was no such convenient transportation at that time, the machinery and equipment could not be transported to the production area. They must be disassembled into parts and transported on horseback, which took half a month to go back and forth.
Until 1939, through their efforts, they succeeded in trail production. The finished tea leaves are plump; the tea soup is red and bright, with a strong fragrance. Dianhong tea was created and named “Dianhong” by its founder; thus “Dianhong” tea was born.
The first batch of Dianhong tea was shipped to Hong Kong for sale and welcomed by the tea customers. Since then, the Dianhong tea industry has been developing year by year. It enjoys a high reputation in the former Soviet Union, Eastern European countries and London market, and is one of the best exported Chinese black teas in terms of high price and earnings.
2. Growth environment of Dianhong tea
Yunnan Province is located on the southwest border of China. It belongs to a subtropical climate, with an average annual temperature of 18-22℃ and a large temperature difference between day and night.
The forest here is dense. The withered grass and leaves form a deep humus layer, so the soil is fertile, which makes the tea tree tall, the buds and leaves strong. Even if it grows 5-6 leaves, they are still soft and tender. Especially, the content of polyphenols and alkaloids in the tea leaves is high.
According to the geographical location, the production area of Dianhong tea is divided into three areas: Dian Xi (West of Yunnan), Dian Nan (South of Yunnan), and Dian Dongbei (Northeast of Yunnan). Dianhong tea is produced in Dian Xi and Dian Nan.
3. Characteristics of Dianhong tea
Dianhong tea is made from the fresh leaves of Yunnan larger-leaf tea trees by withering, rolling or kneading, fermentation, baking, and other processes.
After brewing, the color of Dianhong tea is bright and red; the fragrance is fresh; the taste is strong. A unique characteristic is that the golden circle is often seen at the contact between tea soup and teacup. Among Dianhong Gongfu black teas, the best quality tea is “Dianhong special gift tea”, which is mainly made from one bud with one leaf.
Dianhong tea also includes Dianhong broken black tea, which is made by chopping or cutting the Dianhong Gongfu tea into granule and powder.
Dianhong Gongfu black tea and Dianhong broken black tea are exported to Russia, Poland, and other Eastern European countries and more than 30 countries and regions in Western Europe and North America. The drinking method of Dianhong tea is mainly mixed with sugar and milk, and the flavor of the tea is still strong after adding milk.
4. Health benefits of Dianhong tea
Dianhong tea is a kind of black tea, so it has all the health benefits of black tea.
Under the combined action of caffeine and aromatic substances in Dianhong tea, it can increase the blood flow of the kidney, increase the glomerular filtration rate, expand the renal microvessels, and inhibit the reabsorption of water by the renal tubules, thus contributing to an increase in urine output.
Anti-inflammation and sterilization
The catechins in Dianhong tea can combine with single-cell bacteria to coagulate and precipitate proteins, thereby inhibiting and eliminating pathogenic bacteria. In Chinese folk, people often use black tea to treat wounds, bedsore, and athlete’s foot.
According to experiments, theophylline in black tea can adsorb heavy metals and alkaloids and precipitate and decompose them.
Refreshing and eliminating fatigue
Medical experiments have found that caffeine in black tea can stimulate the nerve center by stimulating the cerebral cortex, promotes refreshment and concentration of thinking, thus making the thinking response more keen and enhancing memory.
It can also stimulate the blood vessel system and the heart, strengthen the heartbeat, thus speeding up the blood circulation to facilitate metabolism and promoting sweating and diuresis.
Other benefits of Dianhong tea:
- Promoting digestion
- Lowering blood sugar, blood lipid, and blood pressure
5. How to store Dianhong tea leaves
The common storage methods of Yunnan black tea are iron can storage and bag storage:
Iron can storage: the most popular and commonly used method of tea storage at home is to use iron can to store it, which is simple and convenient. Iron can with tea leaves should be placed in a cool place and should not place it in direct sunlight or in a damp place.
Bag storage: Preserving tea leaves in plastic bags is one of the easiest and most economical methods for household tea storage. When using a plastic bag, first choose the bag suitable for food; secondly, the material of the bag should not have an odor.