It is sometimes convenient to categorize packages by layer or function: primary, secondary, etc. 1  Primary packaging is the material that first envelops the product and holds it. 2  Secondary packaging is outside the primary packaging, and may be used to prevent pilferage or to group primary packages together.
Does Corn Need To Be Refrigerated? Corn does not typically need to be refrigerated in order for it to be safe to eat. You will want to be aware of the fact that the longer you keep your corn in the refrigerator, the more flavor and vitamins you will lose, so it will not have quite as much nutritional value or taste to it.
FOOD STORAGE â HOW LONG CAN YOU KEEP... CRANBERRIES, DRIED â UNOPENED OR OPENED PACKAGE. 1  Store in cool, dry area; after opening, place in tightly sealed airtight container or heavy-duty plastic bag. 2  Refrigeration is recommended in hot, humid environments.  Freeze in airtight containers or heavy-duty freezer bags.