Focal ancestral founder paths palace chefs, grant halogen duck experience, focal ancestors modesty studious, hence to essence, from the duck, slaughter, cut open the belly, digging, cleaning, yards, pickled, the embryo, drying system, sweet fume, marinating, plate and so on 10 several procedures, plus spices, configuration, steaming, halogen duck brine temperature and other process flow among them, the science formed in a standardized, quantitative marinating technology, its duck "color like amber, perfectly recorded, full-bodied fragrance, aftertaste, old and young all appropriate", over the past century, particularly good word of mouth, ChiYu at home and abroad.