Approximately 15% of all containerised goods are discarded by moisture related damages? This is an incredibly large amount that goes to waste, not only causing large economic losses, but also affecting our nature. So, what is causing container rain? Weather is unpredictable and causes internal and external damage. The air near the ocean has high levels of moisture and when they get trapped in the container, they settle in the colder areas. When the container goes to a hotter region, the moisture condenses into water and climbs on to the walls and the ceiling and starts to drip down causing Container Rain. This results in rusting and corrosion of the container walls.