For much of the 19th Century, Carolina Gold rice was a favorite of American rice growers, before disappearing in the early 20th Century. Brought back to life in the 1980s, it again occupies a much beloved, if niche, place in the South's canon of heirloom ingredients. Now, Hagood Coxe, a daughter of a Carolina Gold farmer, wants to make sake, a Japanese rice wine, out of the grain.