Pottery, a primary material used in food contact applications, poses a risk of lead and cadmium migration from its varnishes and enamels. These metals, toxic at certain concentrations in food, pose health hazards, necessitating established limits and compliance assurance by manufacturers or importers through thorough monitoring.
Regulatory Framework
Ceramic
The EU benchmark Directive 84/500/EEC addresses the migration of lead and cadmium from ceramics intended for food contact. It mandates that these ceramics not exceed specified lead and cadmium limits.
From production to retail, ceramics not yet in food contact must include a Declaration of Compliance and evidence of adherence to lead and cadmium migration limits.
Glass
In contrast to ceramics, glass regulations vary across EU Member States. This variation necessitates checks on composition and migration tests, which are tailored according to the product’s intended use.
Mechanical Resistance
Products undergo mechanical resistance testing after dishwashing and heat resistance evaluations for microwave use. Consumer preferences are often influenced by a product’s physio-mechanical and rheological qualities. However, the safety-critical resistance of food contact ceramics to normal or foreseeable use is paramount. Standard tests include assessing compression, perforation, fracture, and abrasion resistance.
Technological suitability tests also verify properties like heat, oven, microwave, and freezing resistance for these food contact materials.
Our Comprehensive Ceramics & Glass Services
Mérieux NutriSciences conduct specific migration testing for cadmium and lead in pottery, ensuring compliance with Directive no. 84/500/EEC, its amendments, and additions. Additionally, it offers mechanical and heat resistance testing for ceramic and glass products.
