Why does it say on a jar of mustard seeds-
and on a jar of peanut butter-

I would hope that the jar of mustard seeds contained mustard and my peanut butter had peanuts in the recipe.
Similarly, 'Serving Suggestion' on a pack or tin, I wouldn't have thought to serve soup in a bowl, or perhaps I was to serve it in a white bowl, with a wooden salt and peppermill beside it, in a rustic cottage kitchen. like it depicted in the 'Serving Suggestion', would the flavour have been enhanced?