How should I maintain an Orange Ninjato for display?

 Updated Feb 2026

Start by handling the blade with a soft cloth or gloves to avoid leaving fingerprints, since skin oils accelerate oxidation on carbon steel. Apply a thin layer of choji oil (clove oil) along the flat and spine of the blade every two to three weeks, or more frequently in humid climates. Wipe excess oil away so the surface has a light sheen without dripping. Store the sword in its saya when not on display and keep it in a room with stable humidity — ideally between 40 and 55 percent relative humidity. The orange tsuka-ito can be kept clean with a dry soft brush to remove dust without fraying the cord fibers.

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