Health authorities have been in touch with Pams for a "please explain" this week following two separate contamination complaints.
On Tuesday, Hawera's Petra Finer phoned the company after she found a tiny fragment of glass in her 900g jar of raspberry jam.
The following day, Thelma Edgar, also from Hawera, complained after she found a four-pronged, silver stud in her blackcurrant jam about a fortnight ago.
Taranaki District Health Board regulation and environments manager Matthew Parkinson confirmed it had been in touch with Pams after becoming aware of the complaints. The unit deals with related to with food-borne illnesses.
He said it would be informed of the outcome of Pams' investigation.
- Taranaki Daily News
What name would you like to see the Taranaki rugby team known as next year?Related story: Change on cards for our team - no bull