How should I store and maintain a purple saya katana long term?
Updated Mar 2026
For long-term display and storage, keep the sword horizontal on a dedicated katana stand or mount it on a wall rack where the saya is not under sustained contact pressure from a single edge - this prevents lacquer compression marks over time. Avoid direct sunlight on the saya; UV exposure gradually shifts lacquer pigment, and purple tones are particularly susceptible to fading or color drift over months of light exposure. Humidity is the more serious concern: store in a space with relatively stable, moderate humidity. Excessive moisture can cause the hardwood saya core to swell, which affects how the blade sits within the scabbard and can stress the lacquer surface. Before storing the blade for any extended period, apply a very light coat of choji oil to the steel using a soft cloth, then wipe off the excess - this prevents surface oxidation without transferring oil to the interior saya lining.