How should I care for a tanto with a dark or black blade finish?
Updated Mar 2026
Dark and black blade finishes — including the treated manganese steel found in several pieces in this collection — require slightly different care than polished bare steel. Avoid wiping with dry cloths, which can create micro-scratches in the surface coating. Instead, use a soft, lint-free cloth lightly dampened with choji oil or mineral oil to gently clean and protect the surface. Keep the blade in its saya when not on display, as prolonged air exposure combined with humidity can affect the finish over time. For wall-mounted or shadowbox displays, position the piece away from direct sunlight and high-humidity areas such as bathrooms or exterior-facing walls. Do not use steel polish or abrasive compounds on treated dark blades, as these will strip the finish and alter the blade's appearance permanently.