Metals & Alloys in Food Contact Applications

Metals and alloys play a crucial role in the production of food contact items, yet their regulation at the EU level lacks uniformity. These materials are commonly used in packaging and tableware, necessitating vigilant monitoring of their compositional characteristics and potential for contaminant migration.

Stainless Steel

Stainless steel is deemed appropriate for food contact provided that tests for the global and specific migration of nickel, chromium, and manganese are conducted. These elements pose health risks and should not migrate from containers and utensils into food. Alarming trends in the migration of harmful substances from imported cookware, as highlighted by RASFF notifications, underscore the importance of meticulous monitoring. Additionally, evaluating the corrosion resistance and environmental durability of various stainless steel grades is crucial.

Aluminum

Aluminum finds widespread use in food contact applications. While specific guidelines on migration are lacking, assessments typically focus on the material’s purity and suitability for food contact. The overarching principle is that harmful substances must not transfer to or affect the organoleptic properties of food. A protective barrier often coats aluminum used in food contact, with its effectiveness subject to laboratory verification.

Tinplate & Chrome-coated Steel

This category includes materials with different compositions, necessitating individual testing for:

• The base steel composition
• The tin or chrome coating
• The presence of oils and inks

Both overall and specific migrations, particularly for lead, iron, and tin, must be verified.

Our Comprehensive Metal & Alloy Services