kinda stupid question but are all walnuts safe? why ASK IS BECAUSE SOME NUTS THAT I PICKED ARE VERY STRONG SMELLING AND MY GIRL TURNS HER NOSE AT THEM I JUST CLEANED SOME TODAY TO SEE IF IT MAKES A DIFFERANCE THEY LOOK LIKE THE OTHER NUTS I PICKED THEY LOVE BUT THESE FELL OF TREES LATER AND SEEMED HARDERSHELLED I GUESS SINCE MAYBE THEY STAYED ON TREES LONGER