When handling aluminum food containers, it's important to ensure they are food-grade and free from any damage or sharp edges. Always wash them thoroughly before use, and avoid using abrasive cleaners that could scratch the surface. Do not store acidic or alkaline foods in aluminum containers for extended periods as this can cause leaching of aluminum into the food. Also, avoid heating aluminum containers in a microwave as it can cause warping and potential chemical reactions. Use caution when disposing of aluminum containers to recycle them properly and minimize environmental impact.