And the scientific study known as Craveology begins. Studies include having a medical student live on nothing but White Castle burgers and water for 13 weeks.
Studies show conclusively that the student maintained good health.
White Castle begins to use frozen beef patties assuring quality. 1931 White Castle develops the crush-resistant cardboard carton that is specially lined to keep the perfect square burgers steaming. These cardboard containers promote the carry-out idea by ensuring each sandwich reaches its destination looking and tasting as fresh as when it came off the grill. 1932 Always ahead of its time, White Castle runs the first fast food coupon advertising campaign. Ad offers the incredible deal of 5 hamburgers for the price of 2, a whopping 15 cent savings on the regular 5 cent price.