Stefan Reidy
Stefan Reidy, CEO at Arviem

14 Jan 2015

One of the main problems our clients from all different industries encounter in terms of damage of cargo in transit is the moisture and condensation – especially on those shipments with long transit time. It is common practice to use moisture absorbing ‘desiccant’ bags in order to minimize the risk – but once saturated, they serve no further purpose. Also the risk is rather the condensation, which will happen depending on the dew point. Desiccant bags may marginally reduce the dew-point-threshold, but they can’t eliminate the risk of condensation.

The Relative humidity of an average shipment can easily vary between 40% and 90%. However, the up and down of the relative humidity is not always relevant and most likely will not affect the cargo as the container is a closed ecosystem.

Assuming a temperature of 11.5 °C with a relative humidity of 91% inside the container would lead to a dew point of 10.1 °C. Desiccant bags may reduce the relative humidity inside the container to 89% or 85%, which reduces the dew point only marginally to 9.8 °C and 9.1 °C, respectively.

If the outside temperature however in this example falls below 9 °C, condensation will happen and affect the cargo quality.

Attached picture shows the impact of condensation along the walls for a container full of coffee beans.

Thanks to real-time cargo monitoring, the shipper can be informed immediately when condensation most likely is happening and/or give a condensation-risk-forecast based on local weather forecast. It enables the shipper to make decisions on

  • reposition container
  • inspect container
  • claims handling
  • proactively inform client


At the same time, real-time monitoring also allows to

  • detect holes in the container, through which water can enter the container
  • improve the end-to-end performance,
  • improve the security

All this information allows to optimize supply-chain processes, mitigate future risk, reduce insurance premiums and the capital cost.


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