Food-grade PS/EVOH/PE composite barrier sheet, made of food-safe raw materials, compliant with FDA, EU and other international food contact standards. The EVOH middle layer effectively blocks oxygen, moisture and gas, extending the shelf life of food; the PS layer has good rigidity and transparency for clear product display; the PE layer ensures excellent heat sealability, suitable for heat-sealed packaging. Ideal for packaging of meat, seafood, dairy products, snacks and other perishable foods, as well as food storage containers.