-35 °C quick freezing cold storage how to build and install
Quick-freezing cold storage preservation principle and characteristics
Quick freezing cold storage: also called tunnel cold storage, quick freezing tunnel cold storage. It is mainly used for the rapid freezing of food in a short time, so that the food can quickly pass through its own large ice crystal formation stage, and its freezing method will quickly freeze when its average temperature reaches -18 °C.
Changes in food during the freezing process
1. When we use ordinary freezing method to freeze food, the time taken for the food to freeze is relatively long, and the food will undergo various changes during the freezing process, compared with the physical changes (volume, thermal conductivity, specific heat, Changes in dry consumption, etc., chemical changes (protein denaturation, color change, etc.), changes in cell tissues, and changes in organisms and microorganisms.
2. Under normal circumstances, many foods begin to freeze when the temperature drops to -1 °C. Most ice crystals are formed between -1 °C and -5 °C. This stage is called the high ice crystal formation stage. Using the low-temperature state of the quick-freezing cold storage, the rapid freezing of the food allows the freezing process to be shortened a lot, and then quickly removes the heat of the food at a rapid rate, which is very important for improving the quality of the frozen food storage.
The principle of fast freezing food storage in quick freezing cold storage: How to build and install the -35 °C quick freezing cold storage
1. Freezing the cold storage to freeze the food to avoid the food itself from generating large ice crystals between the cells.
2. The frozen food in the frozen freezer reduces the water content in the food cells, and the juice loss is less when thawing.
3. The concentration of solute and food tissue inside the food cell tissue, the colloidality of the food and the contact time of various components are directly shortened, and the harm of concentration is reduced to a low level.
Advantages of quick freezing cold storage
1. The quick-freezing cold storage can maintain the original nutritional value and quality of the food to a large extent.
2. The quick-freezing cold storage rapidly reduces the food to a temperature below the microbial growth activity, which is very beneficial to resist the growth of microorganisms in the food itself and its undesirable biochemical reactions. -35 °C quick freezing cold storage how to build and install
3. The short residence time of the food in the freezing of the frozen cold storage is beneficial to improve the utilization rate and production efficiency of the equipment.
Quick-freezing cold storage installation and temperature design: The temperature of the quick-freezing warehouse is generally -15 °C ~ -35 °C.
The quick-freezing library is mainly used for low-temperature freezing of food, medicine, medicinal materials, chemical raw materials and the like. Customers are advised to consult with us when they need to build a cold storage. We will choose the solution according to the characteristics of the goods you store. advisory:
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