Burn Marks In Kitchen Sink

Really you should pay those bills not burn them. Sorry just had to add that.

Have you tried asking your local fire brigade or maybe a restaurant's chef? I am sure both have dealt with fire in sinks before (although the latter may not admit it). I think perhaps if you are earnest you may get an answer we have not suggested yet. Good Luck.

Try using a scouring powder such as Zud or Barkeeper's Friend - not sure if they are available in the U.K. Otherwise another brand of powdered cleanser might help. Good Luck!

try baking soda on a damp cloth