ThaiReefer advises customers to shut down the refrigeration machinery and open air vent for 15 minutes before opening container doors to unload cargo to prevent costly Reefer Container Vacuum Damage
In tropical regions, especially in South East Asia with a high temperature and humidity, these combinations can cause the reefer container box to collapse, commonly known as vacuum damage. Moisture in the air frosts during the refrigeration process, reducing the pressure of the vapour in the air, with the result that the vacuum will increase. In another scenario where the door is open and closed when the reefer container is partly loaded/empty, the vacuum forms rapidly (peak reached after only 5 minutes) because of the sudden drop in internal temperature
