well a few months ago when i was 1st getting into Tameshigiri/back yard cutting i used to cut packs of pork trimmings(1-2 inchs thinkness) with my 1045 carbon steel katana and well it was a mess all around(it took days to get the pork smell off of me). Anyways , those trimming left a pork acid etched or something like that on the balde beacuse now there is a light metal discoloration on the blade( like damascus steel patterns ). someone told me that with car wax you can easily remove the discoloration, grease, fat, whatever, with soft wax used for car decoration. Is this true and will it harm the steel?
