Glossary > #Humidity

Humidity in Shipping Containers

Humidity in shipping containers is a serious problem that can have far-reaching consequences for the quality and integrity of transported goods. The use of container dehumidifiers and adherence to best practices for packing and storing goods are key steps to minimize risks associated with humidity. Prevent condensation problems and protect your goods with effective humidity control solutions.

Humidity in shipping containers is often an underestimated yet very serious problem that can cause significant damage to transported goods. During transport and storage, significant temperature fluctuations occur inside cargo containers. These fluctuations can occur not only in ports and railway stations located in different climate zones, but also during storage in a fixed location. Temperature differences can reach several tens of degrees Celsius between day and night.

Why Condensation Occurs in Containers

Since warm or hot air can absorb much more moisture than cold air, when the temperature drops in airtight sealed cargo containers, condensation occurs.

This phenomenon is known as “container sweat” or “container rain”, where moisture accumulates on the walls and ceilings of the container and subsequently drips onto the transported goods.

Consequences of Humidity in Containers

Humidity in shipping containers can have a number of negative consequences:

  1. Damage to goods: Humidity can cause corrosion of metal parts, mold on textile products, degradation of paper packaging and other damage to various materials.
  2. Deterioration of goods quality: Some types of goods may lose their market value due to humidity.
  3. Health risks: Mold and rot can pose health risks to persons handling the goods.

Solution: Dehumidifiers for Shipping Containers

One of the most effective ways to prevent problems associated with humidity in shipping containers is the use of container dehumidifiers.

These specially manufactured drying agents reduce air humidity in containers and thus effectively prevent condensation formation.

How Container Dehumidifiers Work

Container dehumidifiers contain drying materials that absorb excess moisture from the surrounding air.

This reduces the relative humidity in the container and prevents condensation formation. Some commonly used drying materials include:

  • Silica gel: A highly effective moisture absorber capable of absorbing large amounts of moisture relatively quickly.
  • Activated charcoal: Not only absorbs moisture but also removes unpleasant odors.
  • Calcium chloride: An effective moisture absorber often used in industrial applications.

Recommendations for Preventing Humidity in Containers

  1. Regular inspections: Before loading goods into a container, the container should be carefully inspected for the presence of moisture. It is important to ensure that the container is dry and clean.
  2. Use of dehumidifiers: Placing dehumidifiers in the container before loading goods is key to preventing condensation.
  3. Proper packing of goods: Using appropriate packaging materials that protect goods from humidity can significantly reduce the risk of damage.
  4. Monitoring conditions: During transport, it is useful to monitor temperature and humidity in the container using special sensors.