title_body: Is leaving coffee bins open in the store normal?
upvoted_answer: No, it is not.
  
  As you may see in many other answers in this SE, Coffee SE site's answers will lead you that coffee is best stored when it's distant from air,  odor and light.
  
  Closed, vacuumed storage is the regular way and coffee stores are no exception. On the other hand, one may expect that a store should grind coffee when it needs it. So, it won't go stale unnecessarily.