Question: how to get rid of white spots on wood table caused by heat?
Answer: Mix rottenstone and linseed oil to form a thin paste. Rub gently (this paste is very abrasive) on the spot. Do not rub too hard or put too much paste, as the mix will cut deep into the wood's surface. Keep checking to see if the spots disappear, if they do, stop rubbing and wipe clean with a cloth.