How should I store and maintain an expensive display katana?
Updated Mar 2026
Store your katana horizontally on a dedicated wooden stand, edge facing upward in the traditional Japanese orientation, away from direct sunlight and humidity fluctuations. UV exposure degrades lacquered saya finishes and causes ito wraps to fade over time. Apply a thin layer of choji oil (clove oil blended with mineral oil) to the blade every two to three months using a soft cloth or uchiko ball to prevent surface oxidation. Always handle the polished blade surface with cotton gloves - the acids in skin contact can leave corrosion marks on high-carbon steel over time. The saya should be removed periodically to allow airflow, as trapped humidity inside a closed scabbard is one of the most common causes of blade spotting on collectible pieces.