Wooden bowls and utensils are not oven, microwave or dishwasher safe. Hand wash with soap and warm water. Do not allow them to soak.
On the oil finish items, apply a light coat of walnut or almond oil to protect and bring back the original finish as needed. On the wax or lacquer finished items, apply light coat of wax and buff. Only use wood utensils as metal and plastic will scratch.
With a little bit of care these items will be treasures for years to come.