Do I need to seal the food with food wrap before put them in the fridge?

I've always seen friends putting leftover, cooked food in the fridge with food wrap. I asked them why they are doing it and they don't even know why they are doing it. It is necessary to put just cooked food in the fridge with food wrap?
Best Answer
Wrapping food in plastic wrap before refrigerating has a few obvious benefits:
1) keeps the food from drying out in the fridge.
2) prevents odors (garlic, onions, fish, etc.) from transferring between the item in question and everything else in the fridge.
3) keeps crumbs, extraneous particles from falling into the food. If there were a lot of mold/microbe life already proliferating in the other refrigerated goodies, it might even serve to slow down slightly their penetration into your new leftover food on intra-fridge air currents (...ovbviously I'm reaching here)
But no, you don't have to use the plastic wrap; it's just a custom.
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Do you need to seal food in fridge?
Wrapping food in plastic wrap before refrigerating has a few obvious benefits: 1) keeps the food from drying out in the fridge. 2) prevents odors (garlic, onions, fish, etc.) from transferring between the item in question and everything else in the fridge.Can you put plastic wrap in the fridge?
Plastic wrap is designed to be super clingy and cling to containers and food, so it makes sense that it would cling to itself. The key to avoiding this situation is simple: store your plastic wrap in the freezer.Do you need to plastic wrap food in fridge?
The USDA emphasizes the importance of wrapping leftovers well before placing them in the fridge. Wrapping your food airtight is important to maintain its moisture, prevent it from picking up the odor from other foods in the fridge, and to keep bacteria out to prevent illness.Can you store food with plastic wrap?
It may look like the original plastic wrap is secured tightly, but there could be holes you can't see or a slightly lose flap that exposes food to air. The Fix: Rewrap any meat, poultry, and cold cuts that come in flimsy wrapping, especially if you'll be storing them a few days before using them.How to Get Rid of House Mice (4 Easy Steps)
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