Today’s hardwood office furniture sports high-performance finishes requiring special handling. Call in a professional if you’re uncertain about how to proceed. Always run a test in a small inconspicuous area to make sure that your remedy removes the stain and not the finish!
For milk or alcohol stains rub paste or liquid wax into the stain with your fingers. Or prepare a paste of boiled linseed oil and rottenstone and run it into the wood’s grain. If the wood’s finish is dull, then use pumice. Rubbing with ammonia on a damp cloth can work. Make sure to wipe the area dry and then apply wax or polish.
For white marks, mix cigarette ashes together with lemon juice or salad oil and rub with a cloth dampened with the mixture. You can also rub out white marks with a cloth wet with lighter fluid. Rub immediately after with a mixture of salad oil and rottenstone. Polish or wax the affected area after thoroughly wiping it dry.
Water marks and rings are commonly in the wax rather than the finish. Rub with white toothpaste, mayonnaise or salad oil, and then polish or wax after wiping the area dry to restore the hardwood finish of your office furniture.