Aluminium foil making food warm or cold better

Aluminium foil is a great insulator, meaning that it is great for keeping hot foods hot and cold foods cold. Use it to wrap leftovers or pack your lunch. Individually wrap each food item into a sheet of heavy-duty aluminum foil. Bend the foil into a “tent” shape, and fold the ends down tightly to trap heat. If you wrap your meal well, it should hold the same temperature for hours.

Preserve food with aluminum foil. Aluminum foil has the lowest moisture-vapor transfer rate of almost any wrapping material. This means that it is extraordinarily good at keeping food from drying out. Foil is also great for retaining the odor of smelly foods.

Wrap leftovers in an airtight seal of aluminum foil, then store in the freezer or refrigerator until you are ready to eat again.

If you don’t have access to a freezer or refrigerator, you can still use aluminum foil to keep food fresh. Store the wrapped-up food items in a cool, dark, dry place.

Aluminum foil is even better than plastic wrap at retaining odor and moisture. Just make sure that you carefully seal each item so that it’s as airtight as possible! This will make the food less prone to freezer burn.


Tip about keep food warm or cold better by aluminium foil

Do not store highly acidic foods (e.g. tart foods, vinegar, and tomatoes). The acids can corrode the foil after a few days, exposing the food to the air and inflecting the dish with small pieces of aluminum. These “aluminum salts” are not strictly harmful to eat, but they might make your food taste metallic.

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