At Food52 you use a lot of wooden dishes - how do you clean them and keep them looking good?
We hand wash all the wooden dishes and utensils.
I don't know about any other special techniques to keep them nice, but they certainly are pretty!
Keep them oiled regularly. Olive oil for olive tree wood, walnut oil for walnut, etc.
Just put a dash of oil on a rag and rub it into your dish evenly.
I feel like the wooden ware is a little like cast iron cookware -- over time it develops a patina from all the good things that have seen it in use. While I do hand wash them, I don't want to let them soak or use harsh cleaners or scrubbers. Think of how we treat wooden furniture. Oils are appreciated, and so is humidity; dryness is your enemy! (I have seen Japanese wooden items displayed in a case with a glass of water. Kitchen items shouldn't be so sensitive, but consider their needs.) And remember for wooden handles on knives -- no soaking, no dishwasher.