salty bread and salty tears

You know the feeling when you go back to a favourite food place but it is no longer there? Or perhaps it is there but the cook has changed and it tastes different...
a much more eloquent account of that here.

There must be an elegant way to say this in French, like how esprit de l'escalier (French for spirit of the escalator) refers to a witty comeback that only occurs to you when its too late.