Are Flour Weevils Dangerous?

Are Flour Weevils Dangerous?

Flour weevils do not harm people, animals or furnishings though they can infest and damage stored grains and seeds. Fortunately, freezing flour for a minimum of 72 hours can kill weevil eggs, pupae and larvae and prevent an infestation.

To freeze flour in its original paper package, the entire sack must be placed into a heavy, food-grade plastic bag, sealed with the excess air removed, and put into the freezer. After three days, the bag can be moved to a cool, dark place in a food-grade plastic container with a tight-fitting lid. Flour can also be permanently stored in the freezer or refrigerator to keep it from becoming rancid.