Freezing to kill pantry moths and other food storage pests

[StephenInSC]

Hey everyone, I been wondering how long you should freeze flour, rice, beans, etc. to kill pantry moths and other bugs. To be safe I have been freezing my preps for three weeks before storage due to my first food prep efforts becoming infested with pantry moths. Do any of you freeze for shorter or longer periods?

[Oil Lady]

I was told no less than 2 weeks.

I just retrieved my rice and sugar stores from a friend's house where he graciously stored them in his chest freezer for 2 months for me. Only reason they were frozen for so long is because my friend and I were unable to connect for that long. We met at a Mexian restraurant on Monday night and I treated him. After dinner, we transferred the goods into my car's trunk.

[Mr. Bill]

If you're using standard Ziploc-type freezer bags, you may want to double-bag to protect against rips.

You can probably guess how I learned this.

[zanedclark]

I brought home flour bugs (pantry moths?) from a 25 pound sack of flour from CostCo.  No more CostCo flour, just 5 pound bags from my local store and freeze for about a month.
z

[ncjeeper]

I was told 2-3 days was good enough, but reading some of the posts that may not be long enough.