How should I store and maintain the blue blade finish?

 Updated Feb 2026

Store the sword in its included protective sleeve when it is not on display, and keep it in a dry environment away from direct sunlight, which can fade the handle wrap over time. For the blade itself, apply a thin layer of choji oil or camellia oil with a soft cloth every two to three months. This prevents surface oxidation, which carbon steel is prone to in humid conditions. Avoid touching the blade with bare fingers when possible, since skin oils contain salts that accelerate tarnishing. If fingerprints do appear, wipe them away promptly with a lightly oiled microfiber cloth. These simple steps will keep the blue finish looking pristine for years.

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