Aluminium is processed into thin leaves called aluminium foil that finds use in food packaging, as well as industrial applications. The foil mainly offered as rolls has different finish on both sides, matte inside and glossy outside. The foil is used in homes, restaurants, hotels and other spaces to pack food, as it is impermeable to moisture, oxygen, germs and odour, and thus preserve them. The leftover food at homes can be wrapped in foil and kept in refrigerator. Fresh vegetable sandwich is the most preferred choice of people embarking on a journey, as they remain fresh when wrapped in foil for a longer time period and taste good.