why aluminium foil are used to wrap food items
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Explanation:
Aluminium foil has smooth shiny surface. Due to which it reflects back the heat radiation emitted by the food. Hence food remains warm for a longer time.
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Aluminum foil provides a complete barrier to light, oxygen, moisture and bacteria. Aluminum foil provides a complete barrier to light, oxygen, moisture and bacteria. For this reason, foil is used extensively in food and pharmaceutical packaging. Aluminum foil is also used to make aseptic packaging.
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