How should I maintain a 1060 carbon steel katana on display?
Updated Mar 2026
Carbon steel is reactive to moisture, so consistent maintenance is essential for any displayed piece. After each handling, wipe the blade with a clean soft cloth to remove fingerprint oils, then apply a thin, even coat of choji oil or food-grade mineral oil using a fresh cloth. Avoid over-oiling, as excess oil can attract dust and residue. Store or display the sword horizontally with the edge facing upward in the traditional Japanese orientation. If using an enclosed display case, include silica gel desiccant packs and replace them every few months. Periodically check the mekugi - the small bamboo or copper pin securing the blade through the handle - and re-seat it if it feels loose.