Urushi is one of the hardest natural finishes there is, and also one of the most sensitive to its environment.
Once cured, lacquer resin is remarkably tough, resistant to water, mild heat and everyday use. What it cannot tolerate well is direct sunlight and dry air, both of which work on it slowly, over months and years rather than all at once. A little awareness about where a piece lives solves most of the problem before it starts.
Step 1: Light and placement
UV light fades urushi's colour and can cause the surface to crack over time. This applies to maki-e gold and silver decoration as well, which can dull under prolonged direct sun.
Keep lacquerware out of direct sunlight. A shelf or cabinet away from the window, or a spot that only gets indirect light, is what a piece like this wants.
Step 2: Temperature and humidity
Dry air is the other real risk. A lacquered bowl or box sitting next to a radiator all winter, or in a very dry heated room, can develop fine cracks in the lacquer layer over time.
Stable temperature and stable humidity, away from heating vents and direct sun, is the environment urushi wants. If your home runs very dry in winter, keeping the piece slightly further from radiators makes a real difference.
Step 3: Cleaning
A soft, dry cloth is usually all that is needed after use. Urushi is naturally resistant to light staining, so a simple wipe is often enough.
If you need to remove a mark, use a lightly damp cloth and dry the surface gently straight away afterwards. Never let moisture sit on the surface.
No abrasive sponges, no chemical cleaners, nothing sharp. Urushi is hard, but not indestructible, and a scratch in the surface cannot be undone or polished out.
If the piece is used for food, such as an owan bowl, rinse gently with lukewarm water and dry immediately by hand. Skip the dishwasher entirely, the heat and detergent will damage both the lacquer and any gold decoration.
Step 4: Storage
If your piece came with its original box, store it there once it is completely dry. The box was made for it and offers real protection from dust and light.
Avoid stacking lacquerware directly on top of other pieces without something soft between them, the surface scratches more easily than it looks like it should.
Avoid storing lacquerware in places with big temperature swings, such as near an exterior wall in an unheated room, or anywhere that gets noticeably colder or warmer through the day.
