Chain of Oak is a through the bunghole delivery system designed by Innerstave to benefit those winemakers who do not require an intense oak flavor. This system is winemaker installed and versatile as winemakers can vary the number of oak links in the chain to obtain the desired oak impact. Each chain imparts one-third the amount of oak flavor of a new Barrel Innerstave.

Chain of Oak is used most exclusively in barrel aging programs.