This is standard practice in wine making: Oak is used in winemaking to vary the color, flavor, tannin profile and texture of wine. It can be introduced in the

This is standard practice in wine making: Oak is used in winemaking to vary the color, flavor, tannin profile and texture of wine. It can be introduced in the form of a barrel during the fermentation or aging periods, or as free-floating chips or staves added to wine fermented in a vessel like stainless steel. https://en.wikipedia.org/wiki/Oak_%28wine%29 https://en.wikipedia.org/wiki/Oak_%28wine%29