Why Are Black Diamond Truffles So Expensive? A Look at Their Growing Environment and Production Areas in China

Truffles are rich in protein and enjoy the reputation of the “black diamond.” At the same time, as the king of the world's delicacies, the price of truffles is as precious as gold, and they are a premium ingredient that chefs in high-end hotels and restaurants around the world look forward to year after year. So why are truffles so expensive? What environment do they grow in? Where in China can they be found?

1. Why are truffles so expensive?

1. Truffles have high nutritional value, containing abundant protein, 18 kinds of amino acids (including the 8 essential amino acids that the human body cannot synthesize), unsaturated fatty acids, multiple vitamins, essential trace elements such as zinc, manganese, iron, calcium, phosphorus and selenium, as well as large amounts of metabolites such as sphingolipids, cerebrosides, ceramides, triterpenes, androsterone, adenosine, truffle acid, sterols, truffle polysaccharides and truffle polypeptides, giving them extremely high nutritional and health value.

Truffles, together with Qiongzhen Lingzhi and Linzhongling, are known as the kings of immunity and are the best food for boosting human immunity.

2. Truffles are extremely picky about their growing environment. Truffle growth requires 3 conditions: a host tree, suitable soil and climate conditions. If sunlight, moisture or the pH of the soil changes even slightly, truffles cannot grow.

3. Truffles cannot be cultivated artificially and can only rely on nature's bounty, so their yield is extremely unstable.

4. Harvesting truffles is time-consuming and labor-intensive. Every truffle is found one by one by dogs or sows, which is very time-consuming and labor-intensive.

5. Truffles are very delicate fungi, and preserving them well is extremely difficult. They must be wrapped in soil from their place of origin. Before eating, gently wipe off the soil clinging to the surface of the fungus with a fine cotton cloth, and rinse with a slow stream of water.

2. What environment do truffles grow in?

1. Truffles grow in the soil. They are a type of tuberous fungus attached to the roots of pine trees, containing large amounts of water and trace mineral elements such as potassium, calcium, magnesium, iron and fluorine. Unlike ordinary mushrooms, they are not soft and juicy but rather firm in texture. They prefer alkaline soil. High-quality truffles are mainly produced in limestone terrain areas, such as Alba in Italy, Perigord in France and Yunnan in China, all of which are located in limestone terrain areas.

2. Truffles derive their nutrients from the attached tree roots and soil. If truffles have grown in a place, the nutrients of the land and plants will be absorbed completely by the truffles, and nothing else can grow there for a period of time. During their growth process they cannot tolerate any slight environmental change, and their pickiness about the environment is truly astounding, but at present Western countries have already achieved semi-artificial cultivation.

3. Truffles especially like to grow under pine, oak, poplar, willow, hazel and linden trees, and their color and aroma vary depending on the tree species. Today, mechanized farming methods, pesticide spraying on the soil, excessive or insufficient rainfall, and changes in forest tree species are also the main reasons for the large-scale decline in truffle production in the 20th century.

3. Where in China can truffles be found?

Chinese truffles are mainly produced in the Jinsha River basin. Multiple truffle varieties such as black truffles and white truffles have now been discovered, and they are one of the specialty products of the Jinsha River. With Panzhihua as the center, the area within a 200-kilometer radius is China's core truffle production region, so Panzhihua is known as the hometown of Chinese truffles.

A small amount of truffles also grows in the high-altitude mountainous areas of Taiwan, China, and their appearance is very similar to those of France/China, belonging to closely related source species. But Asians generally have little contact with or understanding of this delicacy, so no commercial operation has been carried out.

At the end of the 20th century, Chinese scientists discovered the distribution of black truffles in the southeastern region of the Himalayas. In fact, in the ethnic minority areas of southwestern China, such as Tibetan areas and the Yi areas of Panzhihua, Sichuan, truffles are called “wuniangguo” (motherless fruit) by the local people.