They also began separating yolks from whites and selling them as separate products. In 1898, Keith made a deal with H. A. Perry of Salina, Kansas. Perry was the founder of Seymour Foods, and had invented a hand-operated yolk-and-white separator which dramatically improved productivity.
They also started distinguishing yolks from whites and marketing them as distinct goods. In 1898, Keith entered into an agreement with H. A. Perry of Salina, Kansas. Perry was the creator of Seymour Foods, and had invented a hand-operated device that efficiently separated yolks and whites.