a device for the non - deleterious , passive aging of wine wherein the interior of the semi - permeable wall of the aging container , which provides the interface between the wine and the atmosphere , has a substantially larger interface area per unit volume of wine than does that of the prior art device . the device employs a polyhedron shaped aging container or vessel having a volumetric capacity of greater than 30 gallons ; and , a relationship of the interior surface area of the container to the volume of the container from 0 . 33 square inches to 1 . 0 cubic inch to 4 . 0 square inches to 1 . 0 cubic inch . in one advantageous embodiment , the container is a rectangular hexahedron . in another advantageous embodiment , the container is a trapezoidal hexahedron .