How should I store a lightning tsuba katana to preserve its finish?
Updated Mar 2026
Proper storage starts with the saya (scabbard) - always store the blade sheathed to protect both the finish and the edge geometry. Keep the piece horizontal on a katana stand in a low-humidity environment; humidity above 60% can cause carbon steel to develop micro-oxidation even without visible rust. Apply a thin, even coat of choji oil or mineral oil to the blade every three to six months using a soft cotton cloth - avoid silicone-based products, which can trap moisture. The tsuba and metal fittings can be lightly wiped with a dry microfiber cloth. If the saya is lacquered wood, avoid direct sunlight exposure which can cause fading and hairline cracking in the lacquer over time.