Melba Toast and Croutons - Some Hard Bread Anyone?

If there is no date on my box of Melba Toast, then how can I tell when it is old? I mean it's already hard as a rock.

On a related note.... Do you like old bread? Well if you love croutons, then you love old bread. Did you know that most restaurants use old stale bread to make their croutons from? Yep, they just cut the old bread into cubes, add some oil, seasonings and then bake.