In 1926, Postum Cereal acquired Igleheart Brothers, Inc (established in 1856), the makers of Swans Down cake flour, and followed this with the purchase of the Minute Tapioca Company. "Tapioca Superlative" had been invented in 1894 by a Boston woman, Susan Stavers, who made it from tapioca flakes that she ran through her coffee grinder. Later that year, she sold the rights to John Whitman, of Orange, Massachusetts, who changed its name to "Minute Tapioca". In 1908, he changed the name of his company to that of his product. The "Minute" brand would later become better known for a General Foods innovation introduced in 1949 known as Minute Rice, a brand of parboiled rice.