It conducts heat extremely well, making it very energy efficient for preparing and serving both hot and cold food. Aluminium is also very light, this helps to reduce transportation costs and means it is suitable for packaging applications where weight is important. Aluminium is used in several types of packaging because of its excellent barrier function, it keeps out air, light and micro-organisms in order to preserve the contents.
Solid aluminium is an effective barrier against light, air and water.
Foil only one-hundredth of a millimetre thick is completely impermeable. Aluminium packages are secure, tamper-proof, hygienic, easy to open and recyclable . Aluminium foil finds its largest use in containers and packaging for food, cosmetics and pharmaceutical products. Aluminium withstands both heat and cold. It's easy to sterilise for food and medical applications.