How should I care for and store a leather-wrapped katana display piece?
Updated Mar 2026
Caring for a leather 1060 carbon steel katana involves attending to both the blade and the scabbard as distinct materials with different needs. For the blade, a light application of camellia oil or mineral oil every few months prevents surface oxidation - apply with a soft cloth, working from base to tip, and wipe away any excess. Store the sword horizontally or at a slight downward angle (edge facing upward in the traditional Japanese style) to prevent oil from pooling at the habaki. For the leather saya, avoid prolonged exposure to direct sunlight, which causes leather to dry and crack, and keep relative humidity between 45-55% if possible. A periodic application of a neutral leather conditioner - not wax-based shoe polish - will preserve the leather's flexibility and surface finish. Never store the blade inside a leather-wrapped saya for extended periods without periodic inspection, as leather can retain moisture that accelerates patina on the steel near the mouth of the scabbard.