Language中文 | ENGLISH
Biological ice bags | Dry ice cold chain | |
Material | The C3H3NaO2 compound causes secondary pollution. It has residual moisture, tending to cause bacterial pollution. | 1、Compressed from food-level CO2, dry ice has no residual moisture, causes no pollution, and realizes a bacteriostatic effect. |
Cold retention capacity | Its cold retention capacity at -20℃ is 1.5 times of that of water ice and declines with time on. | 2、Its temperature can be controlled at -5℃ to -78.5℃. Its cold storage capacity is 1.5 times of that of water ice. |
Logistic cost | For heat preservation, volume of the thermal insulation material and quantity of the ice bags need to be increased, resulting in a high logistic cost. | 3、When it gives full play to its cold storage capacity, the ambient temperature in its containers may be kept at -20℃ for a long time. Dry ice has a low cost of transport at ultra-low temperatures thanks to its small volume and weight. |
Energy consumption | Self-built cold storages are needed to store ice bags, which needs equipment investments and electrical consumptions. | 4、It has a self-owned ultra-low temperature cold source, neding no electricity. |