All finely milled flour and flour based products shall be examined for contamination before repackaging by sifting through a screen which contains 20 meshes per linear inch (.0328 inches per opening or 840 microns) which effectively discloses extraneous material. All contaminated flour and flour based products shall be rejected for human food. If found in a condition acceptable for animal feed or industrial nonfood uses, said products shall be properly designated and denatured with an inseparable material so that it may not be easily diverted to human food.
Minn. R. agency 105, ch. 1550, SALVAGING AND RECONDITIONING OF FOODS, pt. 1550.2920
Statutory Authority: MS s 31.101