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.
Whipped Cream Storage. Since whipped cream frosting is made from heavy whipping cream it requires refrigeration. Once whipped you can store the unused whipped cream in the refrigerator for up to two days. If placed on a cake or used as a cake filling, the cake must be refrigerated whole and eaten within two days. Buttercream.