In 1924, Oscar F. Mayer (who’d started a butcher shop in Chicago with his brother Gottfried) patented presliced, packed bacon. Soon, Mayer added the brand’s signature yellow band, which quickly became an instantly recognizable guarantee of quality. That was important. Each and every American put away around 120 pounds of meat (including bacon) every year. Concerns focused on product integrity. Cholesterol? Fat? Foreign words!