Blomus oak cutting board round is a beautiful and functional accessory for any kitchen. Blomus oak cutting boards are made of untreated oak. This makes for a very natural and classic appearance. Blomus recommends the wood be treated with oil if the item is used with foods to protect the wood against discoloring and prevent food odors and bacteria from attaching themselves to the surface. Suitable oils for treatment are sunflower oil, olive oil, or walnut oil.