How should I store a tachi to preserve the ito and saya finish?
Updated Mar 2026
Tachi-length pieces should ideally rest horizontally on a two-tier sword stand sized for odachi or tachi proportions - stands sized for katana are often too short and can stress the saya at the koiguchi. Keep the display area away from direct sunlight, which can fade teal ito and alter lacquer color over months of exposure. For the saya, dust with a clean, dry microfiber cloth rather than applying any liquid polish, which can lift lacquer or dull matte finishes. Twice a year, remove the blade from the saya, wipe away any residual oil, and apply a light coat of choji oil or food-grade mineral oil before re-seating it. Avoid storing a steel blade inside a lacquered saya for extended periods in high-humidity environments without periodic airing, as trapped moisture can cause surface oxidation against the wood interior.