Why is Aluminium foil used to keep food warm?
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For short-term warmth, you can use foil, but it will not keep the food warm for long. Foil conducts heat, letting it pass through to outside of the food. The foil does not insulate or hold heat in without help. Use a layer of plastic wrap outside the foil or put the foil-covered food into a plastic freezer bag.
2023-06-07 22:31:58
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Zoe Martin
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For short-term warmth, you can use foil, but it will not keep the food warm for long. Foil conducts heat, letting it pass through to outside of the food. The foil does not insulate or hold heat in without help. Use a layer of plastic wrap outside the foil or put the foil-covered food into a plastic freezer bag.
