Her solution surprised me: freeze it. I was flabbergasted. Wouldn’t flour turn clumpy in the freezer? Would moisture ruin it?

Store all flour types in airtight containers to keep out moisture, heat, and odors. Whole grain and nut flours last longer ...

While most baking recipes call for all-purpose flour or sometimes cake flour, you’ll occasionally see self-rising flour listed as an ingredient. There’s a reason for this: Self-rising flour acts ...