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With the continuous development of economy, the pace of people's life is also accelerating, and the number of consumers who buy frozen food is also increasing. The scale of China's frozen food market is also showing a trend of rapid growth. According to the data, the annual per capita consumption of quick-frozen food in China is only 9 kg, while the annual per capita consumption in the United States, the European Union and Japan is 90 kg, 45 kg and 30 kg respectively. In recent years, the annual growth rate of quick-frozen food in China has reached double digits, and the market development potential is huge. Now there are many brands of quick-frozen food in China, which can be described as a hundred schools of thought contending and a hundred flowers blooming. However, after market analysis, some experts found that although there are many brands and fierce competition in the quick-frozen food market, there is a great homogenization phenomenon in China's quick-frozen food, which also leaves market opportunities for small and medium-sized enterprises or new brands. As far as quick-frozen dumplings are concerned, many consumers do not know which one to choose. Sometimes they think they buy brand quick-frozen dumplings, but when they eat, they find that the taste is not the same thing at all. They always think there is a big difference between quick-frozen dumplings and fresh dumplings. Why? In addition to choosing flour and making dumpling stuffing, the important part is the quick-frozen part of dumplings. The water loss of dumplings processed by ordinary quick-frozen machine is very large, which is easy to cause the rupture of dumplings and the loss of nutrients, thus losing the original color, fragrance and taste of dumplings.The liquid nitrogen freezer developed and produced by keweijiani uses liquid nitrogen refrigerant at - 196 ℃ to freeze dumplings at high speed. When the freezing speed of food is 5-50 mm per hour, it can ensure that the amount of ice crystals generated in the freezing process of food is basically unchanged, and the grains are relatively small, so as to achieve the reversibility of preservation. When liquid nitrogen comes into contact with food, it vaporizes to remove heat more quickly. Ultra low temperature and high heat exchange rate realize real fast freezing. This rapid freezing of liquid nitrogen can make the ice crystals smaller, which helps the food to maintain the texture of the food, and the water content is almost no loss, which also keeps the original color, taste and quality of the food. In other words, it keeps the original flavor of the food.Compared with ordinary quick freezer, keweijiani liquid nitrogen quick freezer has incomparable advantages. The freezing speed of liquid nitrogen quick freezer is 30 ~ 40 times faster than that of general freezing method. The dry consumption of materials is small. Generally, the dry loss rate of freezing is 3 ~ 6%, while liquid nitrogen quick freezing can reduce the dry loss to 0.25 ~ 0.5%. The cost of equipment and power is low, so it is easy to realize mechanization and automatic assembly line, so as to improve productivity. The food processed by the important liquid nitrogen freezer can keep the color, aroma, taste and nutritional value of the food before processing.Consumers have more and more motives to buy frozen food. Small and medium-sized enterprises can gain market share only by deeply understanding the needs of consumers, grasping the core needs of consumers for frozen food and finding the right market entry point. With the development of economy, consumers are no longer pursuing the cheap, but more and more pursuing the quality and taste of frozen food. How to ensure the original flavor of food is the core of small and medium-sized enterprises. Keweijiani is a professional manufacturer of liquid nitrogen equipment in China. For many years, keweijiani has won a lot of praise from the food quick-frozen industry. It is the choice of the quick-frozen food industry and a sharp weapon for small and medium-sized enterprises to seize the market share.