Dumb question. I have some crabapple wood that been outside a year or more and just realized I can use it for smoking. The ends of the pieces have the gray color that wood gets eventually, just on the exposed ends, the rest of the pieces look good as it was under the bark that I can peel off now. I would like to know if I need to cut that gray part off or if makes no difference and just use it all. Thanks for the help.