Aluminium foils are used to wrap food items because aluminium being a soft malleable metal it can be beaten to in sheets to form thin wrapping sheets. Moreover it does not react with food items. Immersion rods are made of metallic substances metals are good conductors of heat and electricity.
Increasingly, aluminum foil is being merged with flexible films to create lightweight packages. This technology allows the packages to expand during production, then contract as the product is consumed. The packaging of pet food, tuna, coffee and soups alone produces 13 billion packages that are candidates for replacement with flexible foil-based packages.
Aluminum foil provides a complete barrier to light, oxygen, moisture and bacteria. For this reason, foil is used extensively in food and pharmaceutical packaging.
Benefits of Aluminum foil when packaging food
Aluminum packaging is light, flexible and easily recyclable. Furthermore, it is hygienic, non-toxic and helps in keeping the aroma of foods. It keeps the food fresh for a long time and provides protection from light, ultraviolet radiation, oils and grease, water vapour, oxygen and microorganisms.
In addition, have a look at the following advantages:
Aluminum foil reacts only to highly concentrated acids and basic substances and is otherwise strongly corrosive resistant
Aluminum foil is sterile and therefore hygienic
Aluminum foil is tasteless and odorless
Aluminum foil is extremely dimensionally stable even in soft state
Aluminum foil can be recycled several times without loss of quality
Aluminum foil does not absorb liquids
Despite the contrary claims, aluminum foil in food packaging is generally harmless to health. Acid or salty foods should not come into direct contact with aluminium, but composite films with aluminum layer can be used.
Aluminum foils and laminates are ideally suited for the production of packaging, depending on their thickness, aluminum foils and laminates are used for a wide range of food packaging.
Coffee and tea
Instant beverages
Jams and pies
Snacks, biscuits and peanuts
Sausage and dried meat
Soup concentrates
Baby food
Ready meals and preserves
