What is the best way to store a lacquered saya tanto for long-term display?
Updated Mar 2026
Lacquered saya are durable but sensitive to prolonged moisture and direct sunlight. For long-term display, keep the tanto in an environment with stable humidity - ideally between 40% and 60% relative humidity. High humidity can cause the lacquer to develop micro-cracks over time, while very dry conditions may cause the wood substrate to shrink and separate from the lacquer layer. Avoid placing the piece near windows where UV exposure can fade hand-painted designs and yellow white ito over months. If the tanto is stored rather than displayed, a paulownia wood box or a cloth bag treated with light sword oil at the closure points provides good passive humidity buffering. The blade itself should be lightly coated with choji oil before long-term storage to prevent any surface oxidation, applied with a soft cloth in thin, even strokes.