Compliance Standard
European safety requirements for food-contact paperboards establish specific limits on chemical migration during high-temperature preparation. The guidelines under bfr recommendation xxxvi 3 govern paper and board designed for baking purposes and cooking temperatures exceeding eighty degrees Celsius. This regulation defines the chemical purity of fibres, sizing agents and processing aids that remain in contact with food during thermal processing.
Compliance requires that transfer of antimicrobial agents and optical brighteners does not occur. Packaging mills must verify that all raw materials are approved for high-temperature contact.
Thermal Resistance
Structural integrity under intense heat prevents the release of degradation products from baking papers into food. Treatment with silicone or other release agents under bfr recommendation xxxvi 3 must withstand temperatures up to two hundred and twenty degrees Celsius without structural failure. This thermal threshold ensures the substrate does not char or leach volatile organic compounds.
Standard testing subjects the materials to simulated baking conditions.
Extraction Testing
Verification of chemical inertness involves rigorous extraction procedures with food simulants. Analysts measure the migration of substances using water and olive oil under defined temperature regimes. The resulting data confirm that total extractables remain below the legal limit of eight milligrams per square decimeter.
If the material exceeds this migration threshold, it cannot be used for commercial baking applications.
