Flavor
Varies with base style. Wood usually contributes a woody flavor, and possibly a distinctive varietal character. Toasted or charred wood can add vanilla, caramel, butterscotch, toasted bread, toasted nuts, coffee, chocolate, or cocoa, depending on the wood varietal and level of toast or char. Wood-derived flavors and added alcohol flavors should be balanced, mutually supportive, and noticeable, while not overpowering the base beer style or each other.