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.
Store sweet corn in the fridge or freezer, as whole ears or as kernels, for longer storage. To store fresh corn in the fridge or frozen, choose the freshest possible ears. To tell if corn on the cob is fresh, look for these signs in corn with the husk on: Brown sticky tassels, also known as the silk.