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High-frequency thawing machine
Description：
High frequency thaw characteristics:
① Rapid thawing frozen products can be within 5 to 30 minutes thawing is completed, thus ensuring the rapid corresponding demand for products, to facilitate students and processing operations.
Example: Chicken (2kg vacuum packaging)
② Uniform thawing, even if there is a certain thickness to ensure a uniform chunks thawed products.
③Reduce drip loss. As a result of the freeze-thaw method of internal heating products, thawed and outside temperature uniform product, so less prone to dripping phenomenon, and to the greatest extent maintain the quality of the product.
|
Thawing method |
Processing time |
Reaching temperature |
Dripping amount |
|
High-frequency waves |
12 minutes |
Surface -0.6 ℃ |
0.2% |
|
Water thawing (+15 ℃) |
6 hours |
Surface ＋15℃ |
5.2% |
|
Cold（＋5℃） |
18 hours |
Surface ＋15℃ |
4.8% |
|
High-frequency waves + cold (+5 ℃) |
12 minutes+12 Hours |
Surface ＋5 ℃ |
3.8% |
|
High-frequency waves + hair spray |
12 minutes＋40 minutes |
Surface＋12℃ |
3.6% |
Table 2: different amounts of thawing drip method (experimental material: 2kg vacuum-packed chicken)
④ Can be realized from thawed cryopreserved → → post-processing step of continuous operation
⑤ No need to open the package to thaw
⑥ Since water is not required when thawed, it can ensure that the working environment is clean and dry.
⑦ By setting the product thaw conditions, anyone can be thawed operations and ensure the stability of product quality after thawing.
⑧ Thaw health and safety, because they do not use water, it will not generate bacterial contamination, while also saving water costs
⑨ Save manpower and reduce operating footprint
2．Why not recommend the use of microwave thawing method?
In a microwave oven the microwaves are used, due to the water molecule has a strong heat resistance, so when thawed, during the ice into water, water molecules are only exception heated, inside the frozen products prone to hot difficult to achieve a uniform defrosting. On the other hand, since the wavelength of high frequency wave is longer than the microwave, it is possible to more deeply inside the frozen products, coupled to the heating effect of high frequency wave is not very different ice and water, which can achieve uniformity of thawing. Furthermore, in the mass production process, in order to prevent leakage of microwave radiation, it is necessary to install an additional protective device
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