Scott’TanTM Tannin Riche Extra was specifically developed from 100% American oak. This proprietary tannin contributes nuances similar to Tannin Riche but with heightened perception of vanillin oak character. It works well in conjunction with low doses of other tannins (e.g. Tannin Complex, Tannin Estate, FT Blanc). Tannin Riche Extra can help smooth a wine’s finish.