The BevWizard Wine Smoother is an innovative pouring device that improves many youthful red and white wines. The Wine Smoother works especially well on young, tannic red wines and significantly oaked white wines. These tannic, astringent wines are made softer and fruitier, with less bitterness particularly on the âfinishâ. As tannic wine passes through the high-intensity magnetic field in the pouring spout, the structure of the tannins is rapidly altered, yielding a softer, silkier mouthfeel. Wine is made to taste softer and fruitier as if it had been further bottle.