With the improvement of people’s living standards, health care consciousness, Cordyceps is sought after by the market because of its peculiar appearance, scarce production, high medicinal value, the price is getting higher and higher, in the early years when the Han people into Tibet, a pack of cigarettes can be exchanged for a pound of Cordyceps, to now speculate to 100,000 yuan per catty, or even higher, the efficacy is also infinitely exaggerated, almost equivalent to the life extension of ” The effect is also infinitely exaggerated, almost equivalent to the life extension of the ” immortal grass “. The Cordyceps is formed by the genus Cordyceps of the family Ergotaceae, which is parasitic on the larvae of manta moths in the soil of alpine meadows, causing the larvae to stiffen, and under suitable conditions, the long rod-like ascospores emerge from the head end of the stiff insects in summer. It is mainly produced in the alpine zones and snowy mountain grasslands of Qinghai, Tibet, Xinjiang, Sichuan, Yunnan, Gansu, Guizhou and other provinces and autonomous regions in China, and is a traditional tonic herbal medicine with certain effects of regulating immune function, anti-tumor and anti-fatigue. Because of the high price, the market is confusing, the good and the bad, the real and the fake is difficult to distinguish, directly endangering health. Good Cordyceps is plump and fat, no moths mold, brittle, easy to break, the section is full inside, slightly flat, white slightly yellow, the periphery shows dark yellow; the seat to short as good, flexible, the section is fibrous, yellow-white, the mouth tastes slightly sour, smells slightly fishy, and the worm connected to the body intact. However, bad traders will use bamboo sticks to put together the broken grass, mixed in the whole grass to sell to customers as good. Even spraying water weight, gluing broken grass, filling lead and mercury and other metal powder weight, with special wormwood mold forgery, fake wormwood impersonation, etc., so that people can not guard against. If you blindly buy tonic, not only waste money, but also harmful. In fact, the effect of Cordyceps is not so amazing, can be completely replaced with princely ginseng, yam, dendrobium and other common supplies. Regarding the eating method of Cordyceps, a relatively simple and effective method: 1, boil water as tea, rather than soaking in boiling water, this method is simple and effective. Usually, the cordyceps should be boiled for 6-10 minutes at a time, pay attention to the civil fire, boiling time is short, the water should be drunk immediately after boiling, add water while drinking, when the color of cordyceps water is darkest is the most nutritious time, the water at this time must not be wasted. You can eat the cordyceps. A pot of Cordyceps tea can be drunk for at least half an hour, adding water 4-6 times. 2, stewed with meat products, combining different varieties of meat. The disadvantage of this method is that it is not suitable for daily adherence to long-term consumption. 3.Used to make medicinal wine to drink. 4.Use a grinder to grind Cordyceps into powder, put it into a capsule box and carry it with you, and take it regularly every day. This method is not recommended if it is not taken on a daily basis. Contraindications: Elderly people with weakness and sweating, weakness after illness or exhaustion, and various chronic wasting patients can take it. It is not suitable for those who are physically strong, obese, yang or impatient. The main points of cordyceps storage are moisture, moth and insect prevention. Cordyceps should not be stored for too long, and its effectiveness will be reduced over time.