To remove white stains from a wooden table, rub the stain with mayonnaise, rub it with mineral oil or apply toothpaste to the affected area. Placing a hot container directly on the surface of a wooden table usually causes these stains.
Begin by applying mayonnaise to a paper towel and rubbing the area until the offending spot disappears. Finish by blotting and carefully wiping any leftover mayonnaise.
If this does not work, apply a generous amount of mineral oil to a piece of extra-fine-grade steel wool and rub it on the stain. Be sure to rub with the grain until the stain disappears. This removes the top polish
along with the stain. Apply paste wax and buff the spot to restore the table.
Remove some minor white stains that have not penetrated deeply into the wood finish by applying toothpaste to the stain. Gently rub the toothpaste with a finger and wipe the area clean with a paper towel. A gel toothpaste may not work as well because of its minimal abrasive power.
If none of the previous options work, try applying baking soda to a damp cloth and wiping down the stain until it disappears. Wipe the area clean with a clean cloth.