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It doesnt the air is sucked out of the pack and replaced by nitrogen.As aluminum foil acts as a complete barrier to light and oxygen (which cause fats to oxidise or become rancid), odours and flavours, moisture, and bacteria, it is used extensively in food and pharmaceutical packaging.
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∙ 12y ago
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Can you keep food in aluminum foil?
Yes. That's what it's for and it keeps it fresh.
What keeps foods colder plastic wrap or aluminum foil?
aluminium foil keeps food colder because it doesn't let air in.
How can you keep food fresh?
A Ziploc bag and wrap your food with aluminum foil :P and it works...
What is the chemicals name used in metal to wrap food to keep it fresh?
Aluminum foil. Sometimes it is mistakenly referred to as "tin foil" which was aluminum foil's predecessor.
How does aluminium foil keeps things warm?
Wrapping an object in aluminum foil reduces the energy loss through infra-red radiation. Foil reflects radiatant energy in the same way that a mirror reflects light. This is very effective in keeping food hot after it has been cooked.
How long does foil keep food fresh?
it depends on the food you put into the foil
What are lunch boxes made of?
Lunch boxes are often made with plastic boxes with flip opener. It's means you can open and close the box by just pressing the box these are made with plastic, foam, silver foil and other stickers to make the box beautiful. you can also use the to pack the food. Because these silver foil boxes keeps the food fresh and long lasting.
What keeps food hotter plastic or aluminium foil?
I would have to say that plastic wrap is better at keeping food fresh because it is more of an air tight seal. where as aluminum foil is better at keeping food warm because it reflects heat.hope this helps
What is the purpose of plastic wrap and aluminum foil?
~Ceppwo The purpose of plastic wrap and aluminum foil is for food, it helps the food to stay good, without the plastic wrap and aluminum foil, it would be harder for us to keep it good, and with out it, the food would mold faster . . . so there's your answer:)
What are the causes and dangers of chemical reaction in foil and food?
Most foil is made from aluminum. Elemental aluminum is highly reactive but this means it reacts with oxygen in the air before you get to using it on your food. Therefore the foil has an outer layer of aluminum oxide which is quite unreactive. This doesnt undergo reactions with food.
Is there any another metal for wrapping food in place of aluminum?
Tin foil used to be popular (which is why sometimes you will hear people referring to aluminum foil as "tin foil"Tin(Sn)
Why does foil get holes in it after wrapping some foods?
Aluminum foil gets holes in it because it is extremely thin. Aluminum foil is not supposed to be able to last forever.
