A humidity control system includes a two-way humidity control material, a plant extract, and a package housing the two-way humidity control material and the plant extract. A method of flavoring a product and controlling the humidity of an environment in a container includes inserting a humidity control system in the container and enclosing the product in the container. The humidity control system includes a two-way humidity control material, a plant extract, and a package housing the two-way humidity control material and the plant extract.
