23 hours ago, jedovaty said:It might be to kill the bugs/weevils.
Hi there, to explain my comment: I recently purchased flour in bulk, and researched how to store it. I've had issues in the past, even with air-tight containers, in that bugs (I guess they are called weevils?) infesting the flour after 6 months or so. It seems this can happen with other grains, too, such as rice, though I've not had that problem. Research suggested freezing for various periods of time if not until ready for use, depending on size of the container. Other suggestions included adding bay leaves to the containers, vac sealing, etc.
So perhaps the suggestion to freeze includes this in addition to possible spoilage. I wonder how they would respond if someone contacted them asking why they instruct it.
