Or how female they are. Or how young. It should be an even playing field.
I don't think they should ever know who cooked what, score it all as a blind tasting.
I have no idea why they are allowed to go around intimidating the contestants and tasting things during the cook.
And asking them just before an elimination what their food dream is, it's another unnecessary audition and is irrelevant whether the judges think they deserve to stay or not.