Aluminum foil food packaging not only prevents food from spoiling and contamination, but is also usually intended to improve appearance and thus attract more target consumer groups.
Benefits of using aluminum foil when packaging food
Aluminum packaging is lightweight, flexible and easily recyclable. In addition, it is hygienic, non-toxic and helps preserve the aroma of food. It keeps food fresh for a long time and provides protection from light, UV radiation, grease, water vapor, oxygen and microorganisms.
In addition, take a look at the following advantages:
Aluminum foil only reacts to highly concentrated acids and alkaline substances, otherwise it has strong corrosion resistance.
Aluminum foil has strong dimensional stability even in its soft state.
Aluminum foil can be recycled many times.
Aluminum foil does not absorb liquids.
Despite claims to the contrary, aluminum foil in food packaging is generally not harmful to health. Acidic or salty foods should not come into direct contact with aluminum, and aluminum layer composite films can be used.
Aluminum foil is generally more durable.
Efficient storage of aluminum-packaged food and beverages reduces the need for cooling, making them spoil more slowly.
In addition, the low weight of aluminum reduces the amount of energy required during transportation.
Aluminum foil is ideal for the production of packaging for:
Coffee and tea
Instant beverages
Jam and pies
Snacks, biscuits and peanuts
Sausages and dried meats
Condensed soups
Baby food
Ready meals and preserves
Colored foil packaging
Colorful packaging often sells better. In many cases, consumers choose a particular product because they are attracted by the packaging design.
Packaging is a combination of product protection and advertising.
As in most other industries, colored films are often used in the food industry. With visually successful food packaging, manufacturers can give their products their own image and thus enhance the recognition value of the target group.
Which foil is suitable for which product?
Depending on their thickness, aluminum foil and laminated aluminum foil can be used for a variety of food packaging.
Films from 10 to 12?m are ideal for chocolate and confectionery, while films from 30 to 38?m are used in the dairy industry, for example for packaging desserts, puddings and yogurts. However, for jams and pies, 50-70?m aluminum foil is the right choice.
Due to cost reduction, the current trend is that aluminum foil is getting thinner and thinner. In the field of chocolate packaging, the thickness of the packaging alone has dropped by about 30% in the past 20 years. At present, the average thickness of chocolate foil is between 7-15?m, which is less than the diameter of a human hair.
Aluminum foil lunch boxes generally have a thickness between 0.03mm and 0.2mm, and can be divided into two types: wrinkled and wrinkle-free. After cold rolling or hot rolling, they are formed into aluminum foil mother rolls with uniform thickness, smooth surface and no odor. After the production process of aluminum foil container machinery and molds, they are formed by one-time fully automatic cold stamping. Aluminum foil lunch boxes are usually made of 8011 aluminum alloy or 3003 aluminum alloy.
Ordinary aluminum foil is not suitable for all foods
Choosing the right packaging composite aluminum foil can help better protect the product and extend the shelf life.
However, for aluminum foil, it can only be guaranteed when it does not come into contact with particularly acidic or salty foods. Under the influence of acid and salt, aluminum ions will dissolve and enter the food.
Therefore, it is not recommended to use ordinary aluminum foil as packaging for the following products:
Applesauce, stewed apples, apple puree
Rhubarb
Tomatoes
Gherkins
Sauerkraut
Salted herrings
Sliced ??citrus fruits
Marinades containing vinegar or fruit acids
Pastry with lye before baking
However, laminated films with an aluminum layer are very suitable for packaging these products. By protecting the aluminum with a plastic layer, the food does not come into direct contact with the aluminum foil.
