§ 1.549. Denaturing procedures.
(a) Carcasses, parts thereof, meat and meat food products (other than rendered animal fats) that have been treated in accordance with the provisions of this section shall be considered denatured for the purposes of this subchapter, except as otherwise provided in Subchapter F (relating to disposal of condemned and other inedible products).
(b) The following agents are prescribed for denaturing carcasses, parts thereof, meat or meat food products which are affected with any condition that would result in their condemnation and disposal if they were at an official establishment:
(1) Crude carbolic acid.
(2) Cresylic disinfectant.
(3) A formula consisting of one part FD & C green, number 3 coloring, 40 parts water, 40 parts liquid detergent, and 40 parts oil of citronella, or other proprietary substance approved by the U.S. Department of Agriculture.
(c) Except as otherwise provided in this section, the following agents are prescribed for denaturing other carcasses, parts thereof, meat and meat food products for which denaturing is required by this Subchapter:
(1) FD & C green, number 3 coloring.
(2) FD & C blue, number 1 coloring.
(3) FD & C blue, number 2 coloring.
(4) FD & C violet, number 1 coloring.
(5) Finely powdered charcoal.
(6) Other proprietary substance approved by the Department.
(d) Tripe may be denatured by dipping it in a 6.0% solution of tannic acid for one minute followed by immersion in a water bath, then immersing it for one minute in a solution of 0.022% FD&C yellow number 5 coloring.
(e) Meat may be denatured by dipping it in a solution of 0.0625% tannic acid, followed by immersion in a water bath, then dipping it in a solution of .0625% ferric acid.
(f) When meat, meat byproducts, or meat food products are in ground form, 4.0% by weight of coarsely ground hard bone which shall be in pieces no smaller than the opening size specified for number 5 mesh in the standards issued by the United States Bureau of Standards or 6% by weight of coarsely ground hard bone which shall be in pieces no smaller than the opening size specified for number 8 mesh in such standards, uniformly incorporated with the product may be used in lieu of the agents prescribed in subsection (c).
(g) Before the denaturing agents are applied to articles in pieces more than four inches in diameter, the pieces shall be freely slashed or sectioned. (If the articles are in pieces not more than four inches in diameter, slashing or sectioning shall not be necessary.) The application of any of the denaturing agents listed in subsections (b) or (c) to the outer surface of molds or blocks of boneless meat, meat byproducts or meat food products shall not be adequate. The denaturing agent shall be mixed intimately with all of the material to be denatured, and be applied in such quantity and manner that it cannot easily and readily be removed by washing or soaking. A sufficient amount of the appropriate agent shall be used to give the material a distinctive color, odor or taste so that such material cannot be confused with an article of human food.
(h) Inedible rendered animal fats shall be denatured by thoroughly mixing therein denaturing oil, number 2 fuel oil, brucine dissolved in a mixture of alcohol and pine oil or oil of rosemary, finely powdered charcoal, or any proprietary denaturing agent approved for the purpose by the Department in specific cases. The charcoal shall be used in no less quantity than 100 parts per million and shall be of such character that it will remain suspended indefinitely in the liquid fat. Sufficient amounts of the chosen identifying agents shall be used to give the rendered fat so distinctive a color, odor or taste that it cannot be confused with an article of human food.
(i) Information as to approval of any proprietary denaturing substance may be obtained from the Director, Processed Food Inspection Division, Consumer and Marketing Service, United States Department of Agriculture, Washington, D.C. 20250.
Cross References This section cited in 7 Pa. Code § 1.12 (relating to requirements for exempted products); 7 Pa. Code § 1.210 (relating to shipping of condemned livers; conditions for disposal); 7 Pa. Code § 1.211 (relating to handling of other condemned products); and 7 Pa. Code § 1.548 (relating to animal food).
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