The Ministry of Primary Industries has been unable to determine how a rat's foot ended up on a Whanganui family's lunch plate.
Earlier this month, Gonville woman Candace Mosen said her son Lucas discovered the foot in a piece of saveloy he had put in his mouth.
The rest of the family had eaten from the same packet of Top Hat saveloys the previous night and were horrified at the discovery.
Tegel, which produced the product, issued a trade withdrawal while MPI collected the foot from Miss Mosen and a week later confirmed it was the left-front paw of a rat.
Last week MPI food compliance manager Melinda Sando said it had completed inspection of the premises the food was produced at, the production process and relevant records.