How should full tang shirasaya swords be maintained given the plain wood housing?
Updated Feb 2026
Full tang shirasaya swords require the same blade maintenance as any carbon steel sword, with specific attention to the plain wood housing. For the blade: wipe with a soft lint-free cloth after every handling, apply thin camellia or mineral oil coating, buff away excess. The blade must be properly oiled before resheathing to prevent moisture trapping inside the close-fitting plain wood housing - moisture trapped between blade and wood accelerates oxidation. For the wood housing: keep dry and away from extreme humidity changes that cause wood to expand and contract. Do not oil or lacquer the plain wood exterior - the natural wood character is part of the shirasaya aesthetic. Inspect the handle and scabbard wood periodically for any cracking at stress points, particularly at the scabbard mouth where the blade enters.