How to keep containers away from humidity and condensation problems

June 30,2021

A container is the most common receptacle in the process of shipping, it provides convenience for the shipment of goods. However, there are also some problems in the shipping process of the container. Some materials in the container may be suffered from water damage, such as clothing, fabric furniture, wood materials, cardboard and paper materials, and organic materials (such as plants or food).
So what are the risks? What is causing this problem? What's the solution?

Humidity problem of the container
This container has high value and durability but is susceptible to moisture and condensation because of its metal surface, which is particularly conducive to heating. In addition, weather, light, and ambient heat can affect the humidity of the air inside the container.
"Container rain" is formed when the air inside the container becomes too hot relative to the cooling sidewalls, which causes the moisture in the air to condense on the metal surfaces inside the container as it changes from water vapor to liquid.
Shipping condensate can damage your goods in several ways, such as various packaging materials (such as plastics, metals, and wood), corrosion of metals, production of mold and mildew (especially in containers of organic products or materials), and deterioration of packaging (especially cardboard).

Three Ways to Prevent Container Condensation and Stay Dry
1.To improve the ventilation
Ventilation is one of the most important means of drawing warm, moist air out and cool, dry air into the container. Once you notice a humidity problem in a container, the initial move you should take is to investigate the ventilation of all containers. Most containers have 10 holes punched into the steel wall for their vents. In addition, containers have an external bracket on top, to helps generate airflow without affecting the container's water tightness. So the first step is to check these facilities are in place and functioning properly.
2.Use a desiccant
A desiccant is a product that absorbs moisture from the air. For example, in the pockets of new clothes, we can find a packet of calcium chloride crystals. It's a good desiccant, absorbing moisture from the surrounding area, so as to protect the fabric. So, putting the desiccant in a bag and putting it on the ceiling or along the wall to absorb moisture also works in containers. These desiccants both remove moisture from the air and physically protect the product from any water droplets forming. At the same time, a desiccant pad is placed under the goods to prevent leakage. It is important to note that the desiccant needs to be replaced and dried in time.
3.Use a dehumidifier
A dehumidifier does exactly what its name says. It removes moisture from the air by sucking it up and storing it in a container. So using a dehumidifier produces drier air than normal conditions, so even if there is a temperature difference between the air inside the container and the walls of the container, no moisture is left behind to cause condensation.
Remember that your dehumidifier needs maintenance, so you need to regularly empty the containers' moisture that collects from the air. In a word, that will be a good choice if you buy the right dehumidifier.

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