"Cutting board oil, also known as butcher block oil, is used to prevent germs and mold from growing on new and old cutting boards. There are several types of oils that can be used to protect your cutting board, wooden spoons, wooden bowls, and other wooden accessories that you may have.
The most common butcher block oil used is mineral oils. Mineral oils are the safest oils to use as they remain safe throughout their lifetime and are safe for food to touch. Mineral oils are typically composed of linseed oil and/or Tung oil and are all natural."