Can seafood mushrooms be poisoned in a few days? If you put the fresh mushrooms in the refrigerator and seal them with plastic, you can put them in the refrigerator for a week. You can eat it as long as it is not rotten and does not panic, and it will not be poisoned. If the color of He Xiangu is wrong, this He Xiangu can't be eaten any more, and it is easy to be poisoned.