【Packaging internal reference network】Canned chestnut is increasingly favored by the market because of its unique flavor and quality, as well as the characteristics of easy storage. In order to further ensure food safety, protect consumer health, and promote the sustained, healthy and high-quality development of the industry, recently, the group standard for "Chestnut (Kernel) Canned Food" led by Tangshan Liyuan Industrial Co., Ltd. and other units has completed the formulation of the draft for comments, and has now been open to the public for comments, and will be closed before September 12, 2020.
Chestnuts originate in China, which is one of the nuts eaten very early in China, and its annual output ranks among the top in the world. China's chestnut planting range is wide, including the north from Jilin, Liaoning, south to Guangdong, Guangxi are distributed, the main production areas are Hebei, Shandong, Henan, Anhui, Hubei and other provinces and regions.
Among them, Hebei chestnut is rich in resources, has a long history of planting, excellent varieties, large yields, and the export volume ranks the forefront of the country. However, chestnuts are not easy to store, and canned chestnuts (kernels) made by commercial aseptic processes not only solve the shortcomings of not easy to store, but also with their unique quality and taste, which are welcomed by the majority of consumers.
It is understood that the current canned chestnuts on the market are diverse, including canned chestnut kernels, canned chestnut kernels, canned chestnut kernels with sugar water, canned chestnut kernels with clear water, etc., which can meet the diversified consumer demand of the market. However, the industry does not yet have a standard specifically for canned chestnut products, often because there is no unified standard specification for varieties, production processes, etc., which not only affects the flavor and taste of the product, but also makes the product uneven, and even the quality and safety of canned chestnut products.
In order to improve the quality of canned chestnuts and ensure product quality and safety, recently, according to the document requirements of the Hebei Food Industry Association, the group standard of "Chestnut (Ren) Canned Food" led by Tangshan Liyuan Industrial Co., Ltd., Hebei Guanzhuo Testing Technology Co., Ltd. and other units proposed by the Hebei Food Industry Association has completed the formulation of the draft for comments, and will be fed back to the Hebei Food Industry Association before September 12, 2020.
The author understands that the group standard of "Chestnut (Kernel) Canning" clearly stipulates the terms and definitions, technical requirements, inspection rules, labeling, packaging and storage and transportation of chestnut (kernel) canned food. At the same time, it is also clearly pointed out that the scope of application of the standard is applicable to canned food made of chestnut or quick-frozen chestnut (kernel) as the main raw material, processed, canned (filling), sealed, heated and sterilized. Among them, it is required that the raw materials of fresh chestnuts should be fresh and clean, and the frozen chestnut kernels are in good condition.
Generally speaking, in the process of quick-freezing, if the freezing time and temperature control are not accurate, the moisture and juice of the processed quick-frozen chestnuts are seriously lost, and the freezing state is not good, which directly affects the flavor taste and processing quality of the canned chestnuts (kernels) in the later stage.
Nowadays, many enterprises use liquid nitrogen freezers for the product freezing process, the product is quick-frozen, the time is short, the quick-freezing is uniform, it will not cause moisture and juice loss, and fully lock the color, taste, texture or nutrients of the product.
Finally, taking into account the characteristics of chestnut (kernel) canning, process characteristics, process control and other factors, combined with the national sampling situation, in order to further improve the quality of chestnut (kernel) canned food. The group standard of "Chestnut (Kernel) Canning" clearly stipulates the factory inspection items, including sensory requirements, soluble solids content, solids, commercial sterility, and net content, providing a strong project inspection basis for ensuring the quality and safety of chestnut (kernel) cans.