Cordyceps is a rare medicinal fungus formed by the symbiosis of insects and fungi. It has long been regarded as a potent tonic in traditional Chinese medicine and, along with ginseng and deer antler, is known as one of the "Three Treasures of Chinese Medicine," enjoying worldwide fame.
Cordyceps first appeared in the Tibetan medical text "Yue Wang Yao Zhen," which recorded its effect as: "treating lung diseases"; "Tibetan Medicine" recorded its effects as: "tonify the lungs and benefit the kidneys, strengthen essence, dissolve phlegm"; "Compendium of Materia Medica - Supplement" recorded its effect as: "summer grass, winter insect, its effect is the same as ginseng, can treat all deficiencies and hundred damages, because it receives complete yin and yang energy"; the "Great Dictionary of Chinese Medicine" says: "Replenishes deficiency, benefits essence and qi, treats impotence and nocturnal emission, soreness of the waist and knees, prolonged weakness after illness."
01. The legendary story of winter worm cordyceps
Speaking of the legendary story of cordyceps, it starts with the "extremely rare cordyceps whole duck soup" curing Wu Zetian's persistent cough.
In 690 AD, the elderly Wu Zetian was frail and sickly, frequently coughing without stopping. Even a slight cold would worsen her condition, and during winter, she did not dare to leave her palace. The imperial physicians tried all kinds of precious medicinal materials to cure her illness, but her condition showed no improvement.
At this time, Master Kang, the imperial chef who had served Wu Zetian for many years, watched with concern and worry. He remembered that in his hometown, the elderly would use extremely rare cordyceps to make soup for nourishment. Thus, Master Kang used cordyceps and whole duck to make soup for Wu Zetian to taste.
Unexpectedly, when Wu Zetian saw things inside that looked like insects but were not, she believed Master Kang intended to harm her and wanted to execute him for attempted murder. However, considering his many years of service and that he had committed no wrongdoing, she had him imprisoned temporarily.
At this time, Master Li, a fellow townsman and friend from the imperial kitchen, felt great sympathy for Master Kang's situation. To clear Master Kang's name, Master Li also used cordyceps whole duck soup to improve Wu Zetian's health.
Considering Wu Zetian's suspicion of cordyceps, Master Li inserted 60 cordyceps into the duck through its beak, then cooked the soup. After preparing the soup, he made Wu Zetian drink two servings daily. After one month, Wu Zetian's complexion improved, her cough stopped, and everyone in the court was happy for her.
One day, Wu Zetian was in a very good mood and invited the supervising censor to a meal. Chef Li served cordyceps stewed duck soup, and Wu Zetian said, "My body has recovered so well, all thanks to this soup." After tasting it, the supervising censor found that the flavor was indeed excellent.
During the meal, Wu Zetian asked how to handle Master Kang's murder case. At this time, Chef Li boldly interrupted and said, "The worm-like thing in the duck soup stewed by Master Kang is actually cordyceps, prepared solely to nourish your health and not intended to harm you." Chef Li then explained the process of making cordyceps stewed duck soup in detail to Wu Zetian and the supervising censor and, on the spot, cut open the whole duck to reveal the worm-like cordyceps. After seeing this, Wu Zetian immediately ordered Master Kang's release and greatly rewarded him.
02. The Source of cordyceps
Cordyceps comes from fungi of the family Clavicipitaceae, the cordyceps species, which parasitize the larvae of insects in the family Hepialidae, forming a dried complex of the fruiting body and larval corpse. The fruiting bodies are harvested in early summer before the spores spread, dried until six to seventy percent dry, impurities and fibrous attachments are removed, and then sun-dried or low-temperature dried. The best quality is complete, plump larvae bodies, bright yellow exterior, white interior, and short fruiting bodies.
03. Effects and Clinical Applications of cordyceps
Cordyceps, also known as Xia Cao Dong Chong, Dong Chong, or Yaza Gongbu (Tibetan phonetic transcription), is named for its ability to transform from insect in winter to herb in summer, encompassing both plant and animal characteristics. It tastes sweet, has a neutral property, and belongs to the lung and kidney meridians. It has the effects of nourishing the lungs and kidneys, stopping bleeding, and resolving phlegm. It is mainly used for kidney deficiency with sperm loss, impotence, weak lower back and knees, chronic cough with shortness of breath, and labor-related cough with blood. The clinically common dose is 3-9g.
04. Chemical Components and Modern Pharmacological Actions of cordyceps
Modern research shows that cordyceps contains cordycepic acid, cordycepin, cordyceps polysaccharides, adenosine, amino acids, various vitamins, mineral elements, ergosterol, etc. The 2020 edition of the "Chinese Pharmacopoeia" stipulates that the content of adenosine should not be less than 0.01%.
Modern pharmacological studies show that cordyceps has pharmacological activities such as enhancing body immunity, relieving cough and asthma, resolving phlegm, anti-tumor, antibacterial, antiviral, improving myocardial ischemia, protecting kidneys, anti-aging, anti-fatigue, and enhancing intelligence.
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Frequently Asked Questions about Selling Cordyceps
Q: What are the main considerations for Cordyceps buyback price?
Answer: There are five core factors affecting the value of cordyceps—origin (best quality and highest price), size (2,000 pieces per catty being the best), integrity (finished or cut grass), dryness, and age (recommended within 5 years). Each factor affects pricing.
Q: Is Cordyceps still valuable after getting damp?
Answer: If slightly damp, you can dry it at low temperature before buyback, but the value will be reduced by 20–40%. Severe mold is harder to cure. If you notice sticky hands, softness, or an unusual odor, contact experts immediately for evaluation.
Q: How do you distinguish between old and new cordyceps?
Answer: New grass is bright golden in color, with a complete and firm fruiting body; Aged grass has a dull color and may have a slight oxidized white cream (which is normal). Cordyceps is not like a fish mawedible bird's nest—its quality remains stable for 5–8 years, but it doesn't get more valuable as it ages.
Q: Does a gift box with cordyceps have a premium?
Answer: Yes. Cordyceps in original gift boxes with certificates usually have a buyback price 5–10% higher because the origin is clearly documented. It is recommended not to unseal and to submit it together with the gift box for expert appraisal.
Question: How can I get an accurate quote?
Answer: Send overall photos + close-up shots to WhatsApp 69035182, including weight (if you have a digital scale). Response within 30 minutes.
How to determine the preservation condition of cordyceps?
You can first take photos of the entire box, close-ups of the insect body and the grass head ratio; we will provide a preliminary reply based on origin, dryness, broken stems, and mold spots.
Kam Hoi Shing dried-seafood buyback
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If the items are well-preserved, we can arrange further appraisal and cash settlement according to market conditions.
