How to prevent condensation in a shipping container

Each year tons of shipping containers are stored and transported across different countries in the World.
There are a hundred different types of shipping containers, come in different sizes, weights, shapes.
Learn how to avoid condensation in a container.


In 2013, the international liner shipping industry transported around 120 million containers, filled with approximately $4 trillion worth of cargo. 

With this much load of supplying each year, shipping container companies have to look for the best strategies to keep containers quality safe and secure.

Unfortunately, companies face a rather large hurdle in their transportation efforts: shipping container condensation. Moisture damage can lead to millions of dollars in losses and have a devastating effect on your business.

What is Shipping Container Condensation

Shipping container condensation occurs when a container’s walls become colder than the dew point of the air found inside the box.

Shipping containers crafted as a metal box, a container’s internal temperature can shift drastically according to weather conditions. When the container cools immediately, the inside air is no longer able to contain its moisture. It will reach its dew point.

Once this happens, the moisture changes into liquid form, which builds and collects on the container walls.

This condensation can drip on your cargo and ruin the container’s interior, resulting in significant losses.

Shipping condensation is also known as container rain, which can damage cargo through:

  • Packaging deterioration.
  • Mold and mildew.
  • Corrosion.
  • Warping.
  • Caking of powder found in goods.

It is essential to avoid condensation in the container to prevent heavy losses.

condensation in the container

What happens if you do not avoid condensation in your container?

Water damage will happen; if you have any goods, products, or items in your shipping container, it will destroy them—especially those that are adequate to dew and condensation.
Imagine you have $60,000 worth of goods in your container, and if there is water liquid condensation, and 10% of your interests are affected, you will lose around $6000 worth of goods.

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How to prevent condensation?

While it is tough to stop the condensation entirely, but there are ways to control it.

condensation in the container
  • Use the right Pellets.
  • Use Desiccants.
  • Consider Dehumidifiers.
  • Improve Insulation.
  • Improve Ventilation.

Use Pallets

Pallets are the best source to avoid or prevent condensation in the container; they are cheap, comfortable available.
Condensation mostly occurs from the bottom of the container. Pallets can help them to avoid condensation from ground level.
Use those pallets which have condensation prevention ability. Some woods can capture more condensation, so please purchase those pallets with condensation prevention power with instructions on them.
Please do not use the wood when it is wet, it can contribute moisture to the air and worsen shipping container condensation.

Try to use plastic pallets, because they are very high in preventing condensation.
Using plastic pallets may help reduce shipping container condensation, as they don’t absorb moisture in the air.

Use Desiccants

Desiccants absorb excess water from the air, effectively reducing the dew point inside the container. Shipping companies often place desiccants inside a shipping container to reduce moisture from products, packaging, or temperature fluctuations.

Consider Dehumidifiers

If you are using a shipping container for storage purposes, please consider dehumidifiers. Dehumidifiers can suck the humid air from the box.
Remember that you’ll need to regularly empty the dehumidifier of water or set up a hose system that can plumb the collected moisture back out of the container.

Improve Insulation

Insulating your shipping container can significantly reduce the amount of moisture in the air and prevent container rain. Container insulation can keep the contents of your cargo warmer than the dew point. Which ultimately contains extreme temperature differences that lead to condensation.

Improve Ventilation

Proper ventilation can remove the condensation. Ventilation funnels warm and moist air out of the container. At the same time, it will capture the outside air with the same ambient temperature inside.
There are plenty of ways to install ventilation in a shipping container; however, ventilation isn’t always the answer. If you’re shipping goods in areas that typically see wet conditions, ventilation could pull moist air in and make condensation worst. Avoid using ventilation to stop condensation in a shipping container if you operate in humid climates.

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