Solid wood reacts to the changing seasons. It absorbs moisture and expands in summer, while it shrinks in winter. This can cause fine cracks. It is a natural property of solid wood and usually settles down over time. I recommend keeping room temperature and humidity constant with a humidifier or dehumidifier, and placing the piece a little away from the wall so air can circulate.

Direct sunlight can discolor the wood. If you want to place your piece near a window, protect it from direct sun with curtains or position it out of direct sunlight. Prolonged direct sunlight can cause fading.

Wipe up spills on untreated surfaces immediately to avoid white marks. Take particular care with volatile or acidic substances such as alcohol or perfume. Even furniture with a waterproof seal should not be exposed to moisture for long periods. Wooden kitchen utensils don't belong in the dishwasher. Don't put hot objects (pots, cups, etc.) directly on the wood. Avoid direct contact with certain plastics or rubber objects.

It's best to dust with a dry, tightly woven cotton cloth, wiping in the direction of the grain so no fibers catch in small gaps in the wood. Avoid damp cloths or steam cleaners, as wood is sensitive to moisture.

I usually finish my pieces with oil. Unlike lacquer, oil doesn't seal the pores of the wood. That gives the wood a pleasant feel and lets it keep responding to the humidity.

For pieces such as dining tables, desks or chopping boards, whose surfaces usually take more wear, I recommend re-oiling the surface every two to three years.

If a piece doesn't stand level, it can warp and drawers or doors can start to stick. So make sure it stands on an even surface.