Sterilization condition is a key for retort product. Used for sterilization the food is prepared either raw or cooked and then filled into the retort pouch. The process heated with high degree for several minutes under high pressure inside a retort or autoclave. Not only 4-3 layers we produce, but we also produce transparent retort for showing product inside as your requirement. It also can keep in room temperature for 1-2 year base on processing.  Mostly products are meal ready to eat, MREs which can be eaten cold or warm.