What is container rain?

Last updated: 24 Sept 2025
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Temperature Difference

เมื่ออากาศที่อุ่นและมีความชื้นสูงเข้าสู่ภายในตู้คอนเทนเนอร์ และอุณหภูมิภายในตู้ต่ำกว่าจุดน้ำค้าง (Dew Point) ของอากาศนั้น ความชื้นในอากาศจะกลั่นตัวเป็นหยดน้ำบนพื้นผิวที่เย็นกว่าภายในตู้ เช่น ผนังหรือหลังคา

Cargo Cooling

The cargo inside the container may also release moisture. For example, goods that have been stored at a higher temperature before shipping can cool down inside the container, leading to the condensation of moisture.

Ventilation Issues

Insufficient or improper ventilation can contribute to container rain. If the container is not adequately ventilated, the trapped moist air has limited means of escape, and condensation becomes more likely.

       Container rain can be problematic as it may lead to damage to the cargo, particularly goods sensitive to moisture, such as electronics, paper products, or certain types of food. To prevent container rain, proper ventilation, insulation, and the use of desiccants (moisture-absorbing materials) are common strategies. Additionally, maintaining the right temperature and humidity levels during transportation can help minimize the risk of condensation inside shipping containers.


If you need further advice on preventing moisture damage in containers, you can contact our team of experts at Tel. (+66) : 020 042 941-2  E-mail : info@inpat.co.th or visit our website at https://inpat.co.th


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