How should I maintain the black lacquer saya on my aikuchi?
Updated Feb 2026
Black lacquer saya are durable but benefit from a few simple habits. Avoid handling the sheath with bare, oily fingers more than necessary — fingerprint oils can leave dull spots on high-gloss lacquer over time. Wipe the saya periodically with a soft, lint-free microfiber cloth. If dust accumulates in textured areas, a very lightly dampened cloth works well; just dry it immediately afterward. Store the aikuchi horizontally on a felt-lined stand and away from direct sunlight or heating vents, since prolonged UV exposure and low humidity can cause lacquer to crack or fade. For rayskin (samegawa) wrapped saya, the same principles apply, though you can use a soft brush to gently clean between the nodules of the ray skin.