Vacuum cooler will work in this way，as the pressure gradually decreases，the water begins to boil in a low temperature state and take away the heat，which can achieve rapid cooling and cooling.It is widely used in cooling and preservation of fruits and vegetables and food as well as transportation and storage and so on.
Characteristics ：
1.Cooling rate：15-30minutes to reach the required temperature of refrigeration preservation.
2.Cooling Uniformity.
3.Clean and sanitary.
4.Thin layer drying.
5.Not restricted by packaging.
6.Keep the freshness of high foods original color，flavor and taste，extend shelf life.
7.The high degree of automation.
8.High precision.
9.Security and stability.
10.Energy saving and high efficient.
