How should I store and maintain a displayed tanto?
Updated Feb 2026
For long-term display preservation, the most important practice is controlling oxidation on the blade surface. Apply a thin, even coat of blade oil — traditional choji oil or a modern equivalent — every four to six weeks, or more frequently in humid climates. When handling the blade, avoid direct skin contact with the flat or edge, as the oils and salts in fingerprints can leave etching marks over time. Store the tanto horizontally on a dedicated stand or within its saya to avoid placing stress on the tsuba or handle fittings. If displaying in a case, include a small silica gel packet to regulate ambient moisture. The lacquered saya should be wiped down with a dry cloth rather than treated with oils, which can cloud the finish.