How should I display and maintain a carbon steel katana replica?
Updated Mar 2026
Mount the sword horizontally on a katana stand with the edge facing upward - the traditional Japanese convention. For long-term care, apply a thin coat of choji oil or food-grade mineral oil to the blade surface every two to three months. This prevents the fine surface oxidation (small rust spots) that carbon steel can develop in humid environments. Avoid storing the blade inside the saya for extended periods without ventilation, as trapped moisture accelerates oxidation. Keep the saya away from direct sunlight to protect the lacquer finish. Periodically check that the tsuba, habaki, and handle fittings remain properly seated. These simple steps preserve both the visual quality and the structural condition of the piece over many years.