How should I store and maintain a lacquered saya katana on display?
Updated Mar 2026
Lacquered saya are relatively durable but sensitive to humidity fluctuations and prolonged direct sunlight. UV exposure can fade pigment depth over time, particularly in darker lacquer finishes, so positioning away from windows or using UV-filtering display cases is advisable. For the blade itself, a light application of choji oil — traditional Japanese camellia oil — every few months prevents oxidation and maintains the surface finish. When handling, use cotton gloves to avoid transferring skin oils to either the blade or the lacquer surface. Store horizontally or in a dedicated sword stand; avoid leaning the blade under its own weight for extended periods, as this can stress the habaki collar and saya mouth fitting. Never store in an airtight sealed environment, as trapped humidity accelerates both lacquer degradation and blade oxidation.