If you buy large sacks of flour, oats, or rice at warehouse clubs you should be on guard for weevils. Weevils are small beetles that feed on whole and processed grains, nuts, and seeds. Commodity grains are often treated with diatomaceous earth to kill the pests, which works well but can't get all of them. An easy way to surely kill any potential weevils in your foods is to freeze the the entire package for two days. More »
