Hand wash, do not scrub with abrasive material. Season new pieces before using and when the wood looks dry with a food safe wood preserver to avoid cracking. The wood portion may stain when coming in contact with dark colored foods but may wear away with consecutive uses.
Note: Once your bowls have been seasoned, it is not recommended to stack them as the mineral oil could react with the dipped portion and cause it to bubble.
*Please note: due to the reaction of the dip and the wood there are small bubbles that occur on the bottom and sides of the bowl