The freezer price - Freezers thawing technique

< p > freezers - price Freezers thawing techniques which after a lot of frozen food in the commercial freezer, general frozen food are below 0 ℃, so to be thawed before eating. So how to thaw frozen food in the commercial freezer? You first think of is heating, which can only for a few, such as air-conditioner in a large number of frozen food to thaw, this aspect is a little not. Here are the commercial freezer to share a common price, a lot of thawing method. Air release is also called the natural thaw, it is a simple method of thawing. The method is to rely on air heat transfer for frozen products, frozen goods make up, thaw. Air of thawing speed depends on the air velocity, air temperature, and a variety of factors such as the temperature difference between the food and air. Air release can be divided into intermittent and continuous two kinds. Intermittent humidifying in low temperature air supply type thawing device, the device of adjusting temperature of the cooler and heater, can keep constant temperature inside device; Also have to adjust the humidity humidifier, in order to solve the problem of air thaw frozen cake surface drying. The device adopts the 1 m/s wind speed, temperature of 0 - - - - - - - 5 ℃ humidifying air, thawing time is 14 - 15h。 Can the thaw frozen goods, also can be half a thaw. Defrost continuous air supply device and also has a heater and humidifier to adjust temperature and humidity, frozen goods placed in horizontal motion on the conveyor belt, the wind by the direction of the arrow shown in horizontal motion, frozen goods can also be used with vertical air supply direction. The device in each of the lh thaw frozen goods It, fan power of 7. 5 kw, air volume of 600 m3 / min. The disadvantage is that covers an area of large. < br / > at that time, in addition to the above a, freezers frozen foods can also be used in the pressurized air release device, it is made of iron container bubbled into pressure for ( 2 - 3) X l05Pa compressed air, the temperature of the container for 15 Frozen goods 20 ℃, due to the pressure, the lower freezing point. Therefore, in the same release medium temperature, it is easy to melt, shorten the thawing time and quality of thawing is better also. , so cold air coolers and air blower to 1 - At a speed of 2 m/s in the container flows, such as combined with the air pressure and flow of thawing, thawing speed increase more. Using this method of thawing, pressure, wind speed and has a close relationship between thawing time. Experimenting on frozen minced fish, when the wind speed of 2 m/s, the thawing time is only 25 ℃ when 1/5 of the air to thaw. Tuna fish, whales, such as red meat, will often appear when in the natural thaw Browning or fade, with pressurized air flowing defrost device thawing, bright red defrosted meat can be obtained. The disadvantage of the device is low capacity, big investment. These are for freezers frozen food to thaw method in great quantities, you can choose according to actual situation. < br / > < / p >
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