How do you get rid of the dark spots on aluminum bake ware?

To remove dark spots from aluminum bakeware, you can create a paste using baking soda and water, applying it to the affected areas and gently scrubbing with a non-abrasive sponge. Alternatively, you can soak the bakeware in a solution of vinegar and water for a few hours before scrubbing. For tougher stains, using cream of tartar can also be effective; mix it with water to form a paste, apply it, and scrub gently. Always rinse thoroughly and dry immediately to prevent further staining.