Kartonfabrik Porstendorf GmbH’s products are regularly tested for their suitability for foodstuffs by an accredited external laboratory. The results guarantee the risk-free use of our greyboard for our national and international food industry customers.

In addition, our board is monitored regularly by external laboratories for heavy metals and other chemical substances.  Furthermore, during production, we only use auxiliary materials (inks, glues) that are proven to be suitable for contact with foodstuffs by our supplier with a certificate of compliance or laboratory reports.