The European Food Safety Authority's food contact materials panel (Cef) has found two substances safe for use in food contact materials. They are:

1. 4-acrylamido-4-methyl-2-pentanone, for use as a comonomer for acrylic copolymers in coatings on plastics; and
2. montmorillonite clay modified by dimethyldialkyl(C16-C18)ammonium chloride for use at up to 11.4 % weight by weight in ethylene-based polymeric materials for sealing layers up to 12.5μm in direct contact with food.

According to the panel, the compounds are safe if their migration does not exceed 0.05mg/kg of food.