Tony is the purchasing manager of a Saudi meat product company, who has seen many of our cases about microwave thawing through the website, which is of great interest to the latest technology for microwave thawing, as well as the comparison of the traditional air unfreezing and hydrolytic frozen meat used by the previous company. In the processing of meat products, the frozen meat products need to be thawed, and the quality of the meat products depends not only on the freezing technology, but also on the thawing technology. In the food processing industry, it is called the thawing-back temperature, that is, the freezing reversal process.
Saudi Arabia 25KW Microwave Defrosting Equipment Consultation
Microwave Defrosting Equipment
The first company adopts a flowing air unfreezing process, which is also carried out in a refrigerator, humid air with a relative humidity of about 0-5 DEG C and a relative humidity of about 90% (a humidifier) is used, and the gas flows through the freezing product at a speed of 1 m/ s by using a cold fan, and the thawing time is generally 14 to 24 hours, The whole thawing can also be semi-unfrozen. belongs to the most common method in air unfreezing, has the advantages that the thawing is slow, so that the cells can be re-absorbed by the thawed juice, the original quality of the raw materials can be better recovered, the loss of the nutrient is reduced, The chance of microbial proliferation is much, the risk is large, and it is not easy to plan production. In time, the thawing process is generally slower than the freezing process, even if the freezing and thawing are the same temperature difference as the heat transfer driving force. The general heat conduction type heat transfer process is formed by first freezing the surface of the material when the material is frozen at the time of freezing, and forming the solidified layer when the heat transfer process of the heat conduction type is in the outside, and the surface of the food material is first melted when the heat transfer process is unfrozen.
At the same time, the company will also use water immersion to thaw a kind of low temperature water thaw (the unfrozen product is immersed in flowing low temperature water, thaw it. The thawing time is determined by the water temperature and the flow rate of the water. The other is still water thawing (soaking the frozen product in static water for thawing. The thawing rate is related to the water temperature, the number of unfrozen products and the amount of water). Another way is to spray thaw and use the impact force of spray water to improve the thawing speed. In addition to the impact of spray, there are spray water and water temperature. But it can only be thawed as a small fish, but it cannot be used for thawing large meat products and fish.
Tony has a detailed understanding of the unfreezing of the microwave with an industrial microwave frequency of 915 MHZ, and since there are many polar molecular components inside the frozen product such as water, protein and sugar, etc., the microwave energy can have a great absorption capacity, so the thawing speed is very fast.
meat product
the surface of the material in the freezing process forms a cured layer, and when the microwave is used for thawing, the inside and the outside of the food are heated at the same time, the ice crystals inside the material are first melted due to the lower freezing point, but at this time, the cured layer of the surface does not melt, This corresponds to the formation of a protective layer outside the food product, so the loss of the juice is also less. After understanding the relevant advantages of microwave thawing, Tony’s products are mainly unfrozen by the standard box of beef and mutton. As the latest project in the early stage, Tony wants to purchase a small equipment as the testing machine. We recommend a 25kw microwave thawing device for our customers, about 400-500 kg per hour. The customer understands the supply period, about 30 days, and the customer is very satisfied with this. In addition, the opening is to be customized according to the height of the standard box. Since the height of the standard box can reach the height of 20 mm, the height of the microwave feeding port is designed to be 25 mm. Due to the fixed length of the microwave suppressors on both sides, the production line is designed to be 8 meters long, and the customers also want to design the meat product slowing-up area at the discharge port, so as to be convenient for defrosting to a certain temperature and then to carry out the tempering treatment.
Saudi Arabia 25KW Microwave Defrosting Equipment Consultation
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