i have a question, i am in the process of making a 4 ft by 4 ft wine rack, (pictures will come later when its finished... i'm making it out of oak from my Grandfathers woodland, and after shaving down the boards, I had lots of oak chips left over.... the question is, Can I use these chips in winemaking, or must I sterilize them (don't know how to do that), or cannot i not use them at all ???