Aluminium House hold Foil For Food Itsms Packing
In the choice of high-temperature cooking bags, the preferred material is aluminum foil, so why can aluminum foil bags be used for high-temperature cooking? This article will analyze in detail the characteristics of aluminum foil bags as high-temperature cooking bags.
1. The aluminum foil bag has good sealing performance and strong barrier properties. The number of pinholes in the aluminum foil should be small. However, if it has pinholes, its barrier properties will be greatly compromised. Gas and light will penetrate directly and quickly, and the contents will soon be transformed. Generally speaking, the thicker the aluminum foil, the fewer the number of pinholes. For example, the number of pinholes for a 7μm thick aluminum foil should be less than 200 holes per square meter: for a 9μm thick aluminum foil, the number of pinholes should be less than 100 holes per square meter. Square meters. No matter how thick the aluminum foil is, the hole diameter of the pinhole should not be greater than 20μm.
2. The food safety level of aluminum foil bag, the surface cleanliness is high, there is no oil and dust, and the surface tension should be high, which should reach 72mN/m or more. A simple way is to use distilled water to check, the distilled water should be fully moisturized on the surface of the aluminum foil. If the surface of the aluminum foil is severely oily, it will affect the composite fastness of the aluminum foil and other materials, especially after the packaging bag is steamed at a high temperature, delamination and peeling will occur.
3. The aluminum foil material is soft, easy to crack, and has good toughness. The purchased aluminum foil should be kept in a dry state, and should not be left for too long, and should be used as soon as possible to avoid moisture absorption and oxidation of the aluminum foil.
Aluminum foil is metal. Most of the soft aluminum foil with a thickness of 9μm (7μm thickness can also be used) is used in the retort packaging bag. It has excellent moisture barrier, gas barrier and light barrier properties. If there is no mechanical damage and pinholes It is completely impermeable to moisture, air, and light, and has extremely high heat resistance and oil resistance. Therefore, the composite packaging bag containing aluminum foil has the functions of full sealing, high fragrance retention, high oil resistance, and high temperature resistance.
Aluminum Foil Food Household 8011-o Jumbo Roll Aluminum foil has the advantages of saving resources, saving energy and protecting the environment.
