How should I store and maintain a katana with a lacquered saya?
Updated Mar 2026
Lacquered saya are sensitive to prolonged humidity and direct sunlight, both of which can cause the finish to crack, yellow, or lift over time. Store your katana horizontally on a padded stand or in a wood storage box away from exterior walls, heat vents, and windows. Apply a thin coat of choji oil (a light mineral oil blend traditionally used for blade preservation) to the blade surface every few months using a soft cloth or oil paper, wiping away any excess to prevent buildup. For the saya itself, avoid oil contact with the lacquer surface — simply wipe with a clean, dry microfiber cloth to remove dust and fingerprints. The tsuka wrapping benefits from occasional inspection to ensure the ito has not loosened or shifted.