Just a little something to add that may help...If you freeze the rice or corn for 24 hrs. before using, it kills all the little eggs that hatch into those little weevels. This is a trick to use if you're storing anything that contains flour, rice, etc. It will now keep on the shelf indefinitely. Also, I was thinking that you can add a handful of those dried flowers that you can buy at any of the discount stores for potpourri. Just some thoughts....