Finding the cause of condensation in ventilated packs
Condensation can reflect goods packed while warm, humid storage, restricted airflow or temperature changes. Inspect the entire packing and cooling process. Check whether overlap or supplementary covers have closed the ventilation paths. The presence of perforations does not eliminate condensation under all conditions. Validate any proposed change against both airflow and package stability.
Find out when droplets first appear: before wrapping, after a change in storage conditions or during transport. Compare the temperature history and condition of affected goods with an unaffected load. The timing can narrow the investigation.
Inspect folded film, dense overlap and labels for blocked openings. Then check cartons, liners and top coverings inside the complete pack. Improving one outer opening will not resolve a restriction elsewhere in the airflow path.
Try a controlled change with the people responsible for the product and storage process. Document both moisture observations and load stability. If condensation continues, review the wider handling conditions rather than assuming another perforation pattern will solve it.
Confirm your specification
Specify width, thickness, roll length or net material weight, core size, colour, packing, quantity and destination. Final dimensions and performance are confirmed by the sample and order.
Product details are based on the GUDE catalogue and supplied photographs; operating guidance is general and must be verified on your equipment.
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