Container Desiccant Range:

Container Rain: Occurs when a container moves from a high-temperature zone to a low-temperature zone, causing the internal temperature to drop below the dew point. Water vapor then condenses into droplets that accumulate on the container’s ceiling and walls, eventually dripping onto the cargo. 

Cargo Sweat: Occurs when cargo is transported from a cold region to a warm region, or when its storage environment changes from cold to hot. Moisture in the air condenses on the cold surface of the cargo or its packaging, forming water droplets.