Sifter needed, please apply within…

Here’s a tightly fitting tupperware container full of flour…& weevils! Problem wasn’t the seal, but that the bugs were initially in the flour from the market. If you look closely, you can see how they’ve made “ants trails” throughout the flour…@ one point we thought of sifting (thx for sending the sifter Mom J!) but decided to pitch it instead. Anybody have any good weevil prevention tricks?