Gnaw Marks on Food Packaging
Gnaw marks on food packaging can raise a rodent concern, especially if other damaged items or droppings appear nearby. Keep people away from suspect material and record the affected storage area.
The short answer
NEA recognises gnaw marks as a rat sign. Damage to one packet is not enough to identify an animal: handling damage and other pests may also need to be considered.
NEA: Rat prevention and control for the publicCompare the clues
Use these observations to explain the concern. A possible explanation still needs to be checked at the property.
| What you notice | What it could mean | What to do next |
|---|---|---|
| One torn packet | Cause is uncertain | Check the delivery and storage history |
| Repeated damage on one shelf | A recurring source needs investigation | Record dates and affected stock |
| Damage near suspected droppings | Possible rodent activity | Avoid contact and arrange assessment |
What could explain the signs?
Use the surrounding evidence to describe the concern. These possibilities help frame an inspection; they do not confirm the cause in your property.
Several damaged packets
Record which shelf and items were affected. Include whether the packets were already damaged on arrival and when they were last checked intact.
Damage with nearby marks or droppings
Photograph each finding separately. Do not touch suspect droppings or try to identify them by crushing, smelling or handling them.
What you can check first
Keep affected food out of use, prevent children or pets reaching it and photograph the packaging in place. Do not dry sweep or vacuum suspected rodent droppings; seek appropriate cleaning guidance.
CDC: Cleaning up after rodentsWhen to arrange an assessment
Request an assessment if damage recurs or there are sightings or suspected droppings. For a commercial pantry or food area, notify the premises manager and include the affected stock and access needs.
Rat Control SingaporeCommon questions
Use the observations to ask specific questions before agreeing to an inspection or further work.
Should I handle nearby droppings to compare their size?
No. Use a photograph taken without contact. The inspector should identify the evidence and explain the cleaning and assessment arrangements.
What should I include in an enquiry?
Include your property type, the exact affected area, when the sign appeared and whether it has returned. SG Pest Control receives the enquiry; inspection, findings and any work must be agreed separately with the business responsible.
Not sure what you have noticed?
Tell us where the concern is, what you have seen and whether it keeps returning.