Grain Beetles

I've found some critters (not the cats) crawling around in some of my grains.  Internet research convinces me that they are Sawthoothed Grain Beetles, Oryzaephilus surinamensis.  The infestations are small and confined to the plastic canisters holding the grains.  I've found them in some of my bulk soft wheat and my bulk barley; also some mixed grains using the wheat and the barley.