Aluminium bags, often referred to as foil bags, are made from a thin layer of aluminium sandwiched between two layers of plastic or other protective materials. This unique structure provides an exceptional barrier against moisture, light, and air, which are the primary factors that contribute to food spoilage. By effectively sealing food items away from these elements, aluminium bags ensure that products remain fresh for an extended period. This feature is particularly advantageous for manufacturers of snacks, dried fruits, and other perishable goods, as it helps maintain the taste, texture, and nutritional value of their offerings.