A kokeshi is painted wood, and painted wood asks for restraint, not effort.
These dolls were turned and painted by hand, often decades ago, and the wood underneath has been slowly settling into its shape ever since. The paint sits on the surface rather than fused into it the way a glaze is, which means the way you clean and place a kokeshi matters more than how often you do it.
Step 1: The one rule that matters most, never water
Never clean a kokeshi with a wet or even a damp cloth. The paint can lift straight off the wood, and the wood itself will absorb moisture and swell, sometimes enough to crack the join between head and body.
This applies to spills too. If something splashes onto a kokeshi, blot it immediately with a dry cloth rather than wiping, and let it sit somewhere dry afterwards.
Step 2: Light and placement
Direct sunlight fades hand-painted pigment over time, sometimes unevenly if only one side of the figure faces the window. A kokeshi that has faded on one side cannot be restored.
A spot with indirect daylight is fine, and often flattering. Avoid windowsills that get several hours of direct sun, especially in summer.
Step 3: Dusting and cleaning
A soft, dry brush, the kind used for delicate ornaments or lenses, is the easiest way to remove dust from the painted details and the grooves at the base or in the hair.
For the larger smooth surfaces, a dry, lint-free cloth is enough. Light pressure only, the goal is to lift dust, not polish the surface.
If a piece looks dull rather than dusty, that is usually just age. It is not something a cloth will fix, and trying harder will only risk the paint.
Step 4: Temperature and where wood likes to live
Wood that dries out too quickly can crack or split, and this risk is higher for older pieces that have already been through decades of seasonal changes. Keep kokeshi away from radiators, heating vents and fireplaces.
A room with a reasonably stable temperature and humidity is what wood is happiest in, the same environment that suits most houseplants and books.
If you are displaying several kokeshi together, avoid tightly packed shelving where air cannot circulate. A little space between each piece helps.
Care is only half the story. If you are still figuring out where a kokeshi actually belongs in your home, from a single figure on a shelf to a small collection grouped together, I wrote a separate piece on exactly that. How to live with kokeshi: placing a Japanese wooden figure in a modern home
