This industry group comprises establishments primarily engaged in milling of flour or meal from grains or vegetables, manufacturing of malt, wetmilling corn and other vegetables, crushing of oilseeds and tree nuts, and manufacturing breakfast cereals. This industry group also includes preparing flour mixes or dough?s from flour milled in the same establishment; milling, cleaning, and polishing rice; refining and/or blending vegetable oils; manufacturing shortening and margarine; and blending purchased animal fats with vegetable fats.