Are you blending wine and need help improving the final product? Oak Wise has an extensive product line of aqueous oak tannins that can be added to wine up to 48 hours before bottling. To receive samples of NATAN call our office at (209) 224-5353 or Mel Coronado at (209) 200-1438.For full product range visit: Natural Aqueous Tannins | Oak Wise (oak-wise.com)