Seafood liquid nitrogen cryopreservation technology isa new food freezing technology in recent years. Standard temperature of liquid nitrogen is -195.8 ℃, and it is currently recognized as the most environmentally friendly, efficient and most economical cooling medium. When liquid nitrogen and seafood contacting, temperature difference is over 200 ℃, and the food could be rapidly frozen within five minutes.Rapid freezing makes ice crystals of seafood very small, eliminating the loss of moisture, inhibiting the destruction of bacteria and other microorganisms.The food would not meet any oxidation, discoloration and rancidity, so to keep the color, flavor and original nutrients; and long term cryopreservation can also maintain the best taste.

Overview:

     Seafood being frozen in liquid nitrogen tank has advantages of rapidly frozen, long term preservation, low equipment investment costs, low operating costs, no energy costs, no noise and almost no maintenance costs etc. So it is firstly used in the upscale seafood freezing application. It is foreseeable that liquid nitrogen cryogenic freezing technology will gradually replace traditional mechanical refrigeration technology, and it will cause the revolution of products freezing area.

     Our company has more than 30 years’ experience in manufacturing liquid nitrogen tanks. In Asia, we are the leading company in developing the largest seafood frozen in liquid nitrogen tanks, marine seafood frozen tanks, seafood rapid frozen machine and other products. It has been used in fishing and helps users achieve good economic results.

Product Features:

①    Using high vacuum and multilayer insulation technology to ensure low evaporation rate of liquid nitrogen (≤0.8%), low running costs.

②    Intelligent monitoring and management system (patent number: ZL201320141233.4) has features of real-time network monitoring the temperature, liquid level, automated filled the tank and various potential failure alarm to ensure safe operation of equipment. Meanwhile we could provide managing system to monitor the freezing items.

③    The inner and outer vessel are all made of special stainless steel (not cheap and poor heat isolation carbon steel) to ensure that these products having eight years of life.

④    The internal structural design of the rotatable tray makes it easy to put in and take out. Electric rotating structure is optional for some models.

⑤    Vapor and liquid, two cryopreservation type. Promise that the temperature of the top area inside could be close to the liquid nitrogen  temperature (-190 ℃).