What is the best way to display and maintain a koi saya tanto?
Updated Mar 2026
For display, a horizontal tanto stand keeps the piece visible while preventing stress on the saya's lacquered surface. Avoid displaying in direct sunlight, as UV exposure can fade painted lacquerwork over time. Store or display in a space with relatively stable humidity — ideally between 45–55% RH — to prevent the hardwood saya from expanding or contracting. For the T10 blade, apply a thin coat of choji oil or food-grade mineral oil every few months to prevent surface oxidation. Wipe with a soft, lint-free cloth before re-sheathing to avoid transferring moisture or skin oils onto the steel.