With the right finish and seal, a wood kitchen countertop can be resistant to stains. The most stain-resistant kind of finish for wood is called a protective finish, which will repel stains. However, a butcher block wood countertop can stain if you do not immediately treat spills. By regularly applying oil to the countertop, you will be able to prevent a lot of staining. Whatever the finish, take care not to allow any liquid to sit on any wood countertop for more than a few minutes.