How should I store and maintain these swords for display?
Updated Feb 2026
Long-term preservation starts with controlling moisture. Apply a thin layer of choji oil — or food-grade mineral oil as a substitute — to the blade every four to six weeks, or more frequently in humid climates. Use a soft, lint-free cloth or traditional nuguigami paper to spread the oil evenly, wiping in one direction from spine to edge. Avoid touching the blade with bare fingers, as skin oils contain salts that accelerate oxidation. Store or display the sword horizontally on a proper kake stand with the edge facing upward to prevent prolonged pressure on the cutting edge. If you keep the sword in its saya for extended periods, remove it periodically to check for trapped moisture. A silica gel packet placed near your display area helps regulate ambient humidity. For lacquered saya finishes like piano black or crackle glaze, a microfiber cloth removes dust without scratching the surface.