Can lava rocks be added to a George Foreman indoor outdoor electric grill?

Yes, lava rocks can be used in a George Foreman indoor/outdoor electric grill to enhance heat retention and promote even cooking. However, it's important to ensure that the rocks are clean and free of any contaminants. Additionally, check the manufacturer's guidelines to confirm that using lava rocks won't void the warranty or damage the grill. Always exercise caution to avoid overheating or obstructing airflow.