Enter the supermarket, expiry date. Milk production in Japan usually starts at 12 hours a minute every night, so that when the milk comes to market it can be said that the milk produced today. If the milk was made at 11:59 pm, the date on the box would have to indicate that it was made yesterday, and if so, no one would buy it. As a result, the food processing industry in Japan has a local monopoly. Umbrella Corporation Cloth Face Mask. A dairy manufacturer in northern Japan has no hope of competing with southern Japan because transporting milk from north to south will take an extra day, which is a formidable limitation in the eyes of consumers.