Harvesting walnuts every day lately...trying to dry them, but they still catch mold...we crack them and only dry the nuts themselves to save them. Same happened last year, they start to mold no matter what we did...we have them on metal screens in wooden frames, all open to airflow...anyone has advice? My cousin rinses walnuts with bleach, which I don't really want, but it really sucks discarding baskets of molten walnuts that we couldn't crack fast enough.