How should I store and maintain a tanto for long-term display?
Updated Mar 2026
Proper storage begins with environment control. Keep the display area between 40 and 55 percent relative humidity to prevent the wooden saya core and tsuka components from swelling or drying out, both of which can loosen fittings over time. Apply a thin coat of camellia oil or choji oil to the polished steel surface every three to four months using a soft, lint-free cloth, working from the habaki toward the tip and wiping off any excess. Store the tanto horizontally on a proper blade stand, edge facing upward following Japanese convention, and out of direct sunlight - UV exposure will fade the green ito wrapping and degrade any lacquer finish on the saya gradually. Never store the blade inside the saya for extended periods without occasional airing, as trapped moisture accelerates surface oxidation even on well-treated steel.