It involves two daily shipments from their Chungli factory, as well as extensive surveys, and testing and research to control the quantity and quality of President baked goods. They have run into such difficult problems as making bread which would attract the consumers who might prefer the oven-fresh bread that smaller bakeries have to offer.
後來統一設立研究發展課，招考許多大學食品營養系畢業的「麵包師」，根據各種麵包的銷量，不斷去蕪存菁、汰舊換新，及做種種的試驗與改良，使更符合國人口味。