Zunhua Shiitake Mushrooms

Zunhua Shiitake Mushrooms

Zunhua shiitake mushrooms are a geographical indication certification trademark.

Zunhua shiitake mushrooms are a geographical indication agricultural product.

　　Zunhua shiitake mushrooms are a specialty of Zunhua City, Tangshan, Hebei Province. In Zunhua, over 5,000 households involving more than 60,000 people across 16 towns are engaged in the production and management of edible fungi. The area has built more than 5,000 greenhouse mushroom sheds, with a production scale reaching 110 million sticks, producing 120,000 tons of fresh mushrooms annually. Zunhua has become the largest edible fungus production base in northern China. In 2008, it was designated as the "Hometown of Chinese Shiitake Mushrooms" by the National Edible Fungi Association.

　　The suitable region for year-round cultivation of northern shiitake mushrooms lies between 36°N and 41°N latitude — north of the Yellow River and south of the Great Wall. Zunhua City is located at around 40°N latitude and features a distinct warm temperate continental monsoon climate with clearly defined seasons, concentrated rainy periods, dry and windy conditions, and an average annual sunlight exposure of 2,800 hours. This makes it highly suitable for year-round shiitake cultivation, but winter and spring shiitake mushrooms grown in solar greenhouses yield the highest production and best economic returns.

　　In 1994, Zunhua introduced high-quality mushroom strains from Shandong, Zhejiang, and Fujian provinces. After three consecutive years of production, demonstration, and application, it selected and bred medium-to-low temperature strains well-suited to the local natural climate — new varieties such as Zunxia No. 1 and 9809. These varieties have now become the leading strains used in Zunhua’s winter and spring shiitake production.

　　Zunhua is a county-level city under the jurisdiction of Tangshan, located in the northeastern part of Hebei Province. In recent years, the edible fungus industry, with shiitake mushrooms as the main focus, has been a pillar and distinctive industry for Zunhua. The city enjoys the reputations of “Hometown of Edible Fungi in Hebei Province” and “Hometown of Chinese Shiitake Mushrooms.” In 2011, the production scale of shiitake mushrooms reached over 130 million sticks, with an output of nearly 140,000 tons and a total output value of 900 million yuan.

　　Zunhua shiitake mushrooms are a geographical indication agricultural product.

　　Geographic Scope

　　Zunhua shiitake mushrooms are primarily produced in Ping’an Town, Zunhua City. Ping’an Town is situated in the southwestern part of Zunhua City, Hebei Province, on the plain between two mountain ranges of the Yanshan foothills. It features higher elevations in the north and south and lower in the middle, with an average altitude of 23 meters, and is located 25 kilometers from the city center. The protected production area for Zunhua shiitake mushrooms includes 39 villages such as Ping’an Cheng Yi Village, Ping’an Cheng Er Village, Ping’an Cheng San Village, Ping’an Cheng Si Village, Dongmenzhuang, and Housuotun Village. The protected region spans from 40°0′19″N to 40°05′56″N latitude and 117°43′42″E to 117°50′37″E longitude, covering a protected area of 600 hectares, with a perennial planting area of 550 hectares and an annual output of 90,000 tons.

　　Product Quality Characteristics

　　1. External Sensory Characteristics: The fruiting body is hemispherical, consisting of a cap, gills, and stem, and is medium to slightly large in size. The cap has a diameter of 4–6 cm, is flat to slightly flat, with a surface color ranging from light brown to brown to dark cinnamon. The central part often has dark scales, while the edges usually feature dirty-white hairy or flocculent scales. The flesh is white, slightly thick or thick, fine and dense, and aromatic. The gills are white, dense, decurrent, and of unequal length. Cap thickness is 2 cm, nearly hemispherical or umbrella-shaped, with an opening degree of 4.12g/100g, vitamin B1 content of 19 µg/100g, iron content of 0.84 mg/100g, and total amino acid content of 2.39 g/100g. 3. Safety Requirements: The production of Zunhua shiitake mushrooms strictly follows the standards of “NY/5095-2006 Pollution-Free Edible Fungi.”