Image Missing: Hearst Museum object titled Food sample, accession number 1-4380, described as Food sample. Fresh mesquite screw bean is cooked by storage in an immense pit, ca. 15 ft. across and 4 or 5 ft. deep, lined and covered with arrow weed. From time to time water is sprinkled on the mass. After about a month, the screws turn brown and very sweet.