Idaho Code § 71-239: Flour, hominy grits and corn meal.

When in package form and when packed, kept, offered, or exposed for sale or sold, wheat flour, whole wheat flour, graham flour, self-rising wheat flour, phosphated wheat flour, bromated flour, enriched flour and enriched self-rising flour, enriched bromated flour, corn flour, corn meal, and hominy grits, whether enriched or not, shall be sold by weight.