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Hi Lisa. I recently did have a problem with little worms in my dry goods but
was never able to trace the origin.  By the time I discovered them they were
in just about everything (pasta, flour, etc), so I had to throw everything
away.  One of the contaminated items was a bag of Arrowhead Mills brown rice
flour.  Coincidence?? Who  knows, but I've been checking everything I buy
since then and I'm also storing my rice flour in the frig.