How should I store and maintain a clay-tempered T10 tanto?
Updated Mar 2026
Clay-tempered T10 steel is reactive to moisture and should be stored in a low-humidity environment. Apply a thin coat of choji oil or pure mineral oil to the blade every one to three months, or more frequently in humid climates. Use a soft, lint-free cloth and wipe in the direction from spine to edge to avoid any accidental contact pressure against the sharpened profile. The lacquered saya should be kept dry and away from direct sunlight, which can cause the lacquer surface to fade or crack over time. Never store the blade inside the saya for extended periods without periodic inspection, as moisture trapped between blade and saya can cause surface oxidation. A dedicated sword bag or paulownia storage box is ideal for long-term display collection pieces.