What oil to use on a buthcher block?

For a butcher block, food-grade mineral oil is the best choice as it is safe for food contact and helps prevent absorption of moisture and odors. Alternatively, you can use a combination of mineral oil and beeswax for added protection and a smoother finish. Avoid using vegetable oils, as they can go rancid over time. Regularly applying the oil will keep the butcher block in good condition.