What are the differences between aluminum coil and aluminum foil in terms of food packaging?

Aluminum coil and aluminum foil are both used in food packaging but serve different purposes. Aluminum coil is typically thicker and more rigid, used for making aluminum cans and containers. It provides a strong barrier against light, air, and moisture, which is crucial for preserving the quality and freshness of food. Aluminum foil, on the other hand, is thinner and more flexible, often used for wrapping food to protect it from contamination and to retain heat or cold during cooking or storage. It's also used for baking and roasting to prevent food from sticking to the pan or to add a crispy texture. While both materials are recyclable and provide a barrier against external elements, their specific applications in food packaging differ based on their physical properties and the needs of the packaging process.