Cleaner, wire wool, little water and then light brush in circular motions. All stains dissolved like snow in the sun.
First make your counter clean with muscle cooking cuisine, this removes the grease from the sheet, then make a soapy liquid green soap make the blade thoroughly wet and leave it for 15 minutes on the sheet after lying do with clean water and your blade is like new.
A bit abrasive on a sponge with water there and the sink clean with light circular movements. Not too abrasive because it saves detachable work.