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.
Cook or blanch and freeze corn the day it is picked or refrigerate for up to 1 day. With your hands, pull off the husks and silks, section by section, from the ear of corn. Once the husks are removed, use a stiff brush to remove the remaining silks. You can also do this by hand, but it's a bit tedious.