Will this type of oil finish be okay to use on a humidor or should I use something else? I'm getting ready to start building some humidors out of cherry and walnut, lined with spanish cedar. I would like to use the Watco natural finish oil on the outside of the box. I've never used this particular oil on my projects, but I like the finishes that I've seen with this oil. I'm just concerned that the oil soaking through and affecting the cigar flavor. Any thoughts?