This industry comprises establishments primarily engaged in manufacturing breakfast cereal foods. Cross-References. Establishments primarily engaged in-- ? Manufacturing nonchocolate-coated granola bars and other types of breakfast bars--are classified in Industry 311340, Nonchocolate Confectionery Manufacturing; ? Manufacturing chocolate-coated granola bars from purchased chocolate--are classified in Industry 311330, Confectionery Manufacturing from Purchased Chocolate; ? Manufacturing chocolate-coated granola bars from cacao beans--are classified in Industry 311320, Chocolate and Confectionery Manufacturing from Cacao Beans; and ? Manufacturing coffee substitutes from grain--are classified in Industry 311920, Coffee and Tea Manufacturing.