How can I effectively remove stains from pans?

To effectively remove stains from pans, you can try soaking them in a mixture of hot water and baking soda, scrubbing with a paste of baking soda and water, or using a mixture of vinegar and water to soak and scrub the stains. Additionally, using a non-abrasive scrubbing pad or brush can help remove tough stains without damaging the pan.