The new 4010 EP Food Label—an anti-theft electronic article surveillance (EAS) device—was designed specifically to protect fresh and frozen supermarket food from theft. It has been certified as microwave safe and non-flammable by TUV Rheinland, an international service group that provides manufacturers with assessment and certification services to ensure product safety. The 4010 EP Food Label can be applied through high-speed source tagging at the point of manufacture or through in-store tagging. The new EAS label maintains its enhanced performance throughout the supply chain, including after being stored in a freezer.
Source:
http://www.packagingdigest.com/article/523007-Microwave_safe_EAS_food_label.php