All meat, meat food products, meat by-products or poultry products in channels of trade or in establishments whether fresh, frozen, smoked, cured, pickled, or otherwise prepared, even though previously inspected and passed, shall be subject to reinspection by inspectors of the department as often as may be necessary in order to determine whether such products are maintained in a healthful wholesome condition and fit for human food. If, upon reinspection, any such product is found to have become unsound, unhealthy or unwholesome or in any way unfit for human food, it shall be condemned, but when such products are found to be affected by an unsound or unwholesome condition that can be satisfactorily removed by methods approved by the secretary, such products may be so reconditioned under the direction of an inspector. If, upon final inspection, the product is found to be sound and wholesome, it shall be approved for human food; otherwise it shall be condemned.