Why aluminium foil helps keep food warm?
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Aluminum foil is made up of aluminum (as the name suggests), which has reflective properties and acts as a barrier to light and oxygen. As a result, the foil reflects the thermal energy back to the food maintaining the inherent aroma, moisture and flavour of the food.
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the material used in wrapping food items should be flexible foldable and non reactive with food aluminium is a soft mabellable metal . it csn be easily beaten through thin sheets to form wrapping foils.
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