A bit of a curious question: I recently acquired a very small oak barrel. Being small with the volume to oak ratio I have already aged all my wine in the barrel. Now I know the best way to keep an oak barrel conditioned is to keep it filled with wine, but I don't have enough of that. I also would rather not use a sulfer stick for such a small barrel. So I'm considering just buying some inexpensive vodka and filling the barrel. I figured that the vodka is quite sterile and, therefore, should keep the barrel bacteria free. Also, vodka is fairly flavorless and odorless and shouldn't damage the barrel. The only negative I can see is leaching out the oak flavoring, but the barrel at medium plus could use some mellowing...Does anyone know if there are any negatives to doing this?