How to clean a katana sword without ruining the blade
If you've just picked up your first Japanese blade, you're probably wondering how to clean a katana sword properly so it doesn't turn into a rusty piece of scrap metal within a month. It's a valid concern because high-carbon steel—the stuff real katanas are made of—is incredibly sensitive to moisture, oxygen, and even the oils on your skin. If you touch the blade with your bare fingers and just leave it there, those fingerprints will literally etch into the steel over time. ...