Flavor
Varies with base style. Wood usually contributes a woody flavor, and possibly a distinctive varietal character. New wood may add a raw, fresh-cut wood impression. 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 should be balanced, supportive, and noticeable, while not overpowering the base beer style.