I just finished turning a set of salad bowls out of walnut for a family member. Wanting to be absolutely sure of a food safe finish, and also wanting a "natural" look, I finished them with a homemade mineral oil/beeswax finish (4:1 ratio. I know this is not a terribly durable finish so I plan to hand the bowls over with a jar of the oil/wax mixture for future repairs, but is there any thing to be gained by applying additional coats of the finish at this point? With the oil/wax on there now, it's not clear to me that another coat would actual sink into the wood enough to make a difference. Thought, anyone?