Wulian Chestnuts

Wulian Chestnuts

Wulian Chestnuts are a product with geographical indication status.

　　Wulian has a long history of chestnut cultivation. The region boasts fertile soil, abundant sunlight, and plentiful rainfall, all of which create ideal natural conditions for chestnut growth. The chestnuts are large, plump, rich in oil, and have excellent storage qualities. Their flesh is mostly golden yellow, sticky, sweet, and the shells are easy to peel.

　　Wulian County is a major producer of chestnuts and is known as the "Chestnut Hometown." The cultivation of chestnuts here has a long history. Legend has it that during the Sui Dynasty, locals processed chestnuts into powder and made them into chestnut bricks, which were then built into walls to prepare for times of famine. Over the centuries, many fine varieties have been developed, including Damingshi, Xiaomingshi, Daomaoshi, Xiaomaoshi, and Baofushi. Since the 1970s, other high-quality varieties such as Hongguang, Jindou, Hongpiyouli, and Yanfeng have been introduced. By the late 1980s, the chestnut planting area in Wulian County had reached 55,000 mu, with an annual output of 1.12 million kilograms, ranking second in the province and making it one of Shandong’s key production areas. In addition to supplying the domestic market, the chestnuts are also exported to countries and regions such as Japan.

　　The chestnuts from Wulian County are of superior variety, rich in nutrition, and deliciously sweet. They contain large amounts of starch, fat, protein, and reducing sugars, and can be eaten either raw or cooked. They are typically harvested in mid to late September. Peeled and cooked with chicken, they make a uniquely flavorful dish called "Chicken-Shredded Chestnuts," resembling silver threads and golden ingots. Because the word for chestnut sounds like “establishing a child” or “benefiting a child,” local families often hang strings of red dates and chestnuts beside their doors, in bridal chambers, or on bedside tables during wedding celebrations, symbolizing the early arrival of children, prosperity, and good fortune.

　　In 2013, the "Wulian Chestnuts" application submitted by the Wulian County Fruit Tree Station passed the review of the Agricultural Product Quality and Safety Center of the Ministry of Agriculture and expert evaluation, and was granted national agricultural product geographical indication registration and protection.

　　Geographical Scope

　　The protected geographical area for "Wulian Chestnuts" is within Wulian County, Shandong Province. The geographical coordinates are: longitude 119°02′–119°31′, latitude 35°32′–35°54′, with an altitude ranging from 18 to 706 meters. The protected planting area covers 10,600 hectares, with an annual output of 19,080 tons. This includes 326 administrative villages across 10 towns (streets) in Wulian County, namely Hongning, Jietou, Xumeng, Kouguan, Songbai, and Hubu.

　　Product Quality Characteristics

　　1. External Sensory Features: Through long-term cultivation and natural selection, Wulian Chestnuts have developed unique product characteristics. The fruit is delicately shaped, medium in size, weighing about 14 grams per nut. The nuts are uniform and neat, with a brownish shell that is shiny, sweet, and aromatic, offering an excellent taste. 2. Internal Quality Indicators: Wulian Chestnuts are rich in nutrients, containing ≥3.7g/100g of protein, ≥0.8g/100g of aspartic acid, ≥50mg/100g of vitamin C, ≥0.2g/100g of lysine, and ≥15mg/100g of calcium. In addition to being highly nutritious, chestnuts also offer good health benefits. Regular consumption can help nourish the stomach, strengthen the spleen, support kidney function, and improve skin health. 3. Safety Requirements: The standards for air quality, surface water, pesticide use, and product quality follow NY/T391—2000 Green Food—Environmental Technical Conditions for Production Areas, NY/T393—2000 Green Food—Pesticide Use Standards, and NY/T1042—2006 Green Food—Nuts. These standards remain valid unless officially revised, in which case the latest standards issued by the Ministry of Agriculture will apply.