How do I reduce damaged and rejected jerrycans?
Practical guidance for jerrycans: reduce product loss, damaged packs, film waste and avoidable rejects.
Direct answer
For jerrycans, measure where material or product is lost and calculate waste per good pack. A pack must remain clean, stable and correctly orientated through every transfer, filling, closing, labelling and inspection stage. Start by separate product, packaging and rework waste and record damage rate, jam rate, position repeatability and finished-pack integrity. Make one controlled change at a time so the original cause is not hidden by several new settings.
Packaging Machines UK
See the machinery and application options most closely matched to this production question.

What usually causes this?
- overfilling, over-application or excessive trim used as a safety margin
- A change in dimensional and material variation or base stability and centre of gravity.
- start-up and changeover settings not standardised
- The equipment or handling method not being set for larger handled containers requiring stable support and controlled filling.
- damaged or misfed packaging creating repeated rejects
Checks to make in order
- Separate product, packaging and rework waste
- Record damage rate, jam rate, position repeatability and finished-pack integrity using a representative sample.
- Weigh or count loss during start-up, running and changeover
- Check neck, opening or sealing geometry, surface condition and static and guides, transfers and pack support.
- Record the reason for every reject in a sample period
- Check whether waste changes with speed or pack size
- Calculate the financial value of giveaway and damaged packs
How to decide the next step
Jerrycans involves larger handled containers requiring stable support and controlled filling. Prioritise the largest measured loss, then verify that the change does not reduce seal, dose or closure quality.
If adjustment and maintenance cannot hold the required result across the complete product and pack range, compare the machinery route against a written acceptance test. The important comparison is sustained good output—not only maximum cycle speed.
What to include in your production brief
Supplying the information below makes it much easier to distinguish a setup problem from a machinery or packaging limitation:
- Dimensioned pack drawing
- Minimum and maximum pack samples
- Material and supplier specification
- Closure or seal components
- Required orientation and label area
- Target line rate
- Samples that represent jerrycans
- A short video of the current process and fault
Relevant solution websites
These specialist sites match the production process discussed above. Final suitability should be confirmed with samples, output, site and acceptance information.
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