Is it safe to store food in old aluminum foil containers?

Storing food in old aluminum foil containers is generally safe, but it depends on their condition. If the containers are clean, free from rust or damage, and have not been previously used for non-food items, they can be used for food storage. However, it's important to note that aluminum can react with acidic or alkaline foods, potentially causing a metallic taste or leaching aluminum into the food. For long-term storage, especially for acidic foods like tomatoes or citrus, it's better to use containers specifically designed for food storage to ensure safety and maintain food quality.