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深冷速冻工艺在工业发达的国家已达到工业化的规模。它独特之处就是蔬菜、肉类等制品经过处理之后即能保鲜又能较长时间贮存。在我国,蔬菜生产因地区和季节的不同有种类的变化,有淡旺季的分别。蔬菜生产旺季,各地区都会出现暂时的过剩,大批蔬菜因不能及时销售造成大量的腐烂。这即造成商业亏损又增加消费者的负担。但在淡季出现供应紧张,品种单一局面。如何调整矛盾,增加市场供应品种是关系到改善人民生活的大事。我国以往在民间流传很多贮存方法:如制干品、鲜物贮存等都不能大规模作业,而且保鲜程度也差。
Cryogenic freezing technology in industrialized countries have reached the scale of industrialization. It is unique is that vegetables, meat and other products that can be fresh after processing can be stored for a long time. In our country, vegetable production varies according to regions and seasons, and there are differences between light and peak seasons. Vegetable production season, there will be a temporary surplus in all regions, a large number of vegetables due to the timely sale of a lot of decay. This is causing commercial losses and increasing consumer burdens. But in the off-season there is tight supply, a single variety situation. How to adjust contradictions and increase market supply of varieties is a major event that is related to improving people’s lives. In the past, many methods of storage were circulated in our country. For example, dried products and storage of raw materials can not be operated on a large scale, and the preservation level is also poor.