Hebei Yanshan red small package chestnut factory teaches you the quality and origin identification of chestnut

Main origin:

1、 Northeast cultivation area

It is distributed in Liaoning Province and Southern Jilin Province. It has a temperate humid and semi humid climate, and the temperature is low in winter. The concentrated production areas are Donggou, Kuandian and Fengcheng in Dandong. This area mainly cultivates Dandong chestnut of Japanese chestnut system, and a small amount of chestnut is cultivated, of which Japanese chestnut accounts for about 90%, which is mostly used for processing.

1. Look at the color: the shell has bright red, brown, purple, stone and other colors, with glossy particles and generally good quality. If the shell is discolored, dim and with black shadow, it indicates that the fruit has been eaten by insects or deteriorated due to heat. 2. Pinch fruits: you can pinch chestnuts by hand. If the particles are firm, the pulp is usually plump; If the particles are empty, it means that the pulp becomes dry or soft. 3. Crank by hand: shake a few chestnuts on the stage or put them in your hands. The sound of shells makes the pulp dry and hard. Understandably, chestnuts or raw chestnuts will pretend to be fresh chestnuts. 4. Taste: good chestnuts are light yellow, hard, delicate meat, low moisture, high sweetness, rich aroma and delicious taste. On the contrary, they are hard and taste bad. 5. Distinguish particles: chestnut particles should not be too large. Chestnuts in China are divided into southern chestnuts and Northern chestnuts. Bailey generally has small particles, about 70-80 per 500 grams, round, thin skin, easy to peel off after frying, uniform particles and good quality.

2、 North China cultivation area

It is distributed in central and southern Shandong, Jiaodong, Hebei, Beijing, Tianjin and Shandong, northeast Henan and Northern Jiangsu. It is a centralized chestnut food processing area in China. This area has a warm temperate climate, with an annual average temperature of about 11.4 ~ 14 ℃, annual precipitation of 500 ~ 900 mm, drought in spring and abundant rainfall in summer. The soil types are mainly leached cinnamon soil and brown soil, and the Yishuhe area is alluvial soil. Nuts in this production area are small, about 8 ~ 12g, beautiful in color, low in water content, high in sugar content, fine and sweet in texture, and resistant to storage. They are mainly used for frying.

3、 Cultivation areas in the middle and lower reaches of the Yangtze River

It mainly includes Hubei, Anhui, Jiangsu, Zhejiang and other areas in the middle and lower reaches of the Yangtze River. This area has a temperate climate in the middle and north subtropical zone, with an annual average temperature of 15 ~ 17 ℃, an annual precipitation of 1000 ~ 1300 mm, abundant precipitation, rainy flowering period and heavy summer drought. The nuts in this production area are large, with an average single grain weight of more than 16 grams. The outer fruit skin is light colored, and the pulp texture is japonica. The starch content is high, the sugar content is low, and the water content is higher than that of the North China variety group, which is suitable for vegetables. Chestnut food processing and Cultivation in this area has a long history, many varieties, and has always had the tradition of grafting and reproduction; The output of this area is large, accounting for about one third of the total output of the country.

4、 Northwest cultivation area

It is distributed in southern Shaanxi, southern Gansu, northern Sichuan, northwestern Hubei and Western Henan. It has a humid climate in the northern subtropical zone or a semi-arid climate in the southern temperate zone. The annual average temperature is 10 ~ 14 ℃, and the annual precipitation is 500 ~ 800 mm. The cultivation area in this area is small, and the production area is scattered, and the planting mode is transitional from seedling to grafting. The nuts produced are mainly small, with a single grain weight of about 8 grams, the small ones are less than 5 grams, and a few varieties can reach 15 grams; The exocarp is light brown, with dim luster, and the meat is waxy, suitable for frying.

5、 Southwest cultivation area

It is distributed in Southeast Sichuan, Southwest Hunan, Northwest Guangxi, Yunnan, Guizhou and other places. Affected by altitude, the climate varies greatly. It is dominated by subtropical warm climate, warm in winter, cool in summer, and rainy in autumn. There are many seeded chestnuts in this area, and the variety characters are significantly affected by the region, with great differences. Nuts are small, with an average weight of about 7 grams per grain, but also more than 15 grams. In most areas, the fruit has low sugar content, high starch content, waxy, hairy surface and poor color.

6、 Southeast cultivation area

It is distributed in Guangdong, Hainan, Southern Fujian, southern Jiangxi, southeastern Guangxi, central Hunan, southern Zhejiang and other places. This area has a mid subtropical climate, with an annual average temperature of 17 ~ 22 ℃ and an annual precipitation of 1400 ~ 1700mm, with more in April ~ June. It is warm in winter and hot in summer, with abundant rainfall. Extensive cultivation and management, complex variety types, and large seedling variation; Nuts are medium-sized and large, with a single grain weight of 7 ~ 17 grams, and the epicarp is hairy, short and glossy; The average sugar content is 10.7%, and the water content is high; The flesh is japonica and tastes light, which is suitable for vegetables.

The above is the tutor of Hebei Yanshan red small packaged chestnut factory to identify the quality and origin of chestnut. Hebei Yanshan Red Food Co., Ltd., founded in September 2000, is a comprehensive production enterprise specializing in the R & D, processing, production and sales of chestnut, peanut and other agricultural and sideline products. The company covers an area of 20000 square meters and a construction area of 6000 square meters, including food processing workshops, low-temperature warehouses, quick-frozen warehouses and high-temperature warehouses. If you have any need, please contact us!