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Product Splendid Transformation, Striving for Quality Upgrading Again - A Brief Discussion on the Characteristics and Application of Liquid Nitrogen Refrigeration Technology
Release time:
2021-04-15
In recent years, due to various reasons such as e-commerce and reduced raw material fruit production, our company's main tropical fruit raw material products have been greatly impacted by the market. Under this severe environmental test, the core leadership of the company adjusted its strategic policy. After two years of joint efforts by the entire company, the company's products finally entered the tea beverage industry comprehensively in 2020, providing raw material products directly to major tea beverage giants in the country. After successful transformation, frozen products in reality still have certain defects, such as long freezing cycles affecting the flavor of products, cumbersome processes, and high labor demand. In order to achieve the goal of improving product quality and saving labor, the company leadership has implemented a major initiative to introduce liquid nitrogen freezing technology to further upgrade the quality of the products. After multiple inspections by company leaders on the market, equipment technology, and other aspects. In response to this, three subsidiaries of the group have simultaneously introduced liquid nitrogen refrigeration equipment, among which Dachuan Company has taken the lead in installing and testing.
In recent years, due to various reasons such as e-commerce and reduced raw material fruit production, our company's main tropical fruit raw material products have been greatly impacted by the market. Under this severe environmental test, the core leadership of the company adjusted its strategic policy. After two years of joint efforts by the entire company, the company's products finally entered the tea beverage industry comprehensively in 2020, providing raw material products directly to major tea beverage giants in the country. After successful transformation, frozen products in reality still have certain defects, such as long freezing cycles affecting the flavor of products, cumbersome processes, and high labor demand. In order to achieve the goal of improving product quality and saving labor, the company leadership has implemented a major initiative to introduce liquid nitrogen freezing technology to further upgrade the quality of the products. After multiple inspections by company leaders on the market, equipment technology, and other aspects. In response to this, three subsidiaries of the group have simultaneously introduced liquid nitrogen refrigeration equipment, among which Dachuan Company has taken the lead in installing and testing.
The principle of frozen products during the freezing process is to allow the products to form ice crystals. The duration of the ice crystal formation process has a significant impact on product quality. The shorter the time, the smaller the ice crystals formed, the less damage to the product, and the better the quality; The larger the ice crystals formed over time, the worse their quality will be; Liquid nitrogen freezing technology has a short freezing time and fast speed. Liquid nitrogen can reach -190 ℃ under normal pressure. Utilize the ultra-low temperature heat absorption characteristics of heat exchange liquid nitrogen to exchange with products with temperature differences exceeding 200 ° C. Due to the formation of small and evenly distributed ice crystals inside the food during short periods of freezing, the product has minimal cell damage and less loss of food juice after thawing. It can maintain the original nutrition, taste, and flavor of the food, and can be directly packaged using liquid nitrogen freezing, eliminating the waste of human resources and time required for repackaging in the freezer, thereby increasing production capacity. Liquid nitrogen itself is colorless, odorless, transparent, and has stable chemical properties. It does not react with food ingredients and comes from the air. After evaporation, it can be discharged into the atmosphere without affecting the environment. Therefore, liquid nitrogen freezing technology has great practical value in food processing.
The liquid nitrogen equipment used by our company is a tunnel type liquid nitrogen freezing equipment, which has the characteristics of low electrical energy loss during product freezing, the ability to design nozzles up and down, fully utilizing liquid nitrogen, low waste, fast cooling and freezing, high safety factor, equipped with oxygen detection bags, temperature sensing and feedback drainage, and an over temperature alarm system. It has the characteristics of easy use, quiet equipment, and easy cleaning by lifting the top cover.
The quality of the company's products has been further improved, and a better reputation in the market comes from the extraordinary quality of the products.
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