According to The Dairy Alliance, an organization that promotes dairy foods and knowledge about the dairy industry, the indent ...

While it doesn't taste exactly the same as the fresh-from-the-carton ... gives canned milk its 18 to 24-month shelf life (provided that it's unopened and the can isn't severely dented).

Just about every plastic milk jug has a circular indent placed on its side, but why? Is it just decoration? Does it help ...