Is this hard bread like toast (i.e bread that should be hard)? Or more like stale bread (i.e saying its hard to denote that you shouldnt eat it)?
Not 100% sure, but AFAIK the first one.
Hard because of its texture. It can be toasted bread or bread that is hard because of thd way it is made/baked
Bread should never be hard!
Germans disagree for some reason.