During ocean transportation or storage, containers often experience high-humidity climates and large temperature differences between day and night, with humidity as high as 98%. During the day, the high-temperature air that is sealed in the container and is rich in water vapor becomes supersaturated due to the night cooling. The water vapor in the container will condense into water droplets, commonly known as "container rain". This liquid water will have a serious impact on the goods in the container or the outer packaging of the goods. In this case, Container Deisccant can effectively prevent condensation and fundamentally solve the problem of container damage due to moisture.

Due to the diversity and uncertainty of the container environment, it is difficult to accurately calculate its usage. Transportation routes, sailing seasons, packaging and cargo types, and the moisture absorption capacity of Container Deisccant will all have an impact on the consumption of Container Deisccant.

Some plastic products, foam, paper, wood, cotton cloth or fiber can absorb moisture, and wood, cotton or paper can absorb 14% or more of moisture. Some foams may contain 10% moisture. When the Container Deisccant is placed or the temperature rises, the moisture in these substances will be released into the atmosphere. Then when calculating the amount of Container Deisccant, these moisture must be considered. How much water Container Deisccant can absorb from these packaging materials mainly depends on the adsorption capacity of these substances, the type and amount of Container Deisccant, how much water the Container Deisccant absorbs, and the ambient temperature at the time.