How do I establish a care routine for a metal katana collection?
Updated Feb 2026
Maintaining a metal katana collection requires a consistent care routine that protects the high-carbon steel blades from oxidation. Carbon steel will rust without regular oil protection, making the care routine an ongoing responsibility rather than an occasional task. After every handling session, wipe each blade with a soft lint-free cloth to remove moisture and skin oils. Apply a thin coat of camellia oil or mineral oil to the full blade surface and buff away excess, leaving a very fine protective film. Inspect the mekugi retention pins periodically to ensure the handle remains firmly attached. For the scabbard, keep dry and away from humidity that can warp the wood and damage the lacquer. The ito handle wrapping should be kept dry and inspected for any loosening of the wrap pattern. For a collection with multiple pieces, establish a regular rotation of inspection and oiling to ensure no piece is overlooked. Store the full collection in a stable-temperature, low-humidity room away from prolonged direct sunlight.