How should I store and maintain a white saya katana in a collection?
Updated Mar 2026
White lacquer saya are more susceptible to UV yellowing and surface scuffing than darker finishes, so storage away from direct sunlight and fluorescent light is advisable. For the blade itself, a light application of choji oil or a neutral mineral oil every few months prevents surface oxidation — use a lint-free cloth and apply sparingly, then wipe away any excess. When sheathed for storage, ensure the blade is dry and clean before inserting into the saya; any trapped moisture will accelerate rust along the edge. If the sword is displayed horizontally, orient it with the edge facing upward in the traditional katana-kake manner, which reduces stress on the habaki and prevents the blade from resting on the saya lining.