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.
Sweet potatoes should be stored the same way as white potatoes. The usual advice is not to refrigerate them, but they will tolerate refrigeration as long as they have been âcuredâ at 85Â°F for 5-8 days to allow the skins to dry out and harden.Raw whole potatoes can be stored wrapped or unwrapped.If wrapped, they should be loosely wrapped or wrapped in perforated material. Do not wash potatoes prior to storing them. Residual moisture will accelerate spoilage and mold growth.aw whole potatoes can be stored wrapped or unwrapped. If wrapped, they should be loosely wrapped or wrapped in perforated material. Do not wash potatoes prior to storing them. Residual moisture will accelerate spoilage and mold growth.