Johannes Pauw and his father Rik arrive at the Penfolds re-corking clinic at Sydney's Intercontinental Hotel filled with nerves and anticipation.Would they be walking out with the official nod to keep cellaring the dozen bottles of 1981 Grange Rik bought for his son? Or would they be lumped with the dreaded white dot indicating the bottles were on the turn. This would give them the green light to drink them but it isn't exactly how Johannes had anticipated consuming this prized gift from his dad.