Seal-stomach containers were particularly common household items, and they were used well into the twentieth century. By late fall, the rafters of a typical house were heavily laden with seal stomachs full of summer foods. Berries, greens, oil, fish eggs, and other foods were packaged in these pokes. In addition to storage, such containers were also used to render oil from blubber. Pieces of blubber were stuffed into the stomach and both ends tightly lashed to prevent it from leaking. As it aged, the blubber would release the oil, which was then used for food, fuel, and to waterproof skins. Conveniently, the dark color of the seal stomach protected the oil from sunlight and its taste-altering effects.