Wisconsin Administrative Code
Department of Agriculture, Trade and Consumer Protection
ATCP 55-89 - Food, Lodging, and Recreation Safety
Chapter ATCP 57 - Inedible Animal By-Products
Section ATCP 57.22 - Denaturing carcasses and carcass materials

(a) Complete carcasses with hide or feathers intact.

(b) Carcasses or carcass materials that are denatured according to sub. (2).

(c) Fully rendered products.

(d) Carcasses or carcass materials that are naturally incapable of being consumed by humans.

(e) Lungs and lung lobes originating from a meat establishment licensed or inspected under s. ATCP 55.03.

(a) Apply an approved denaturing agent under sub. (3) so that the denatured carcass or carcass material has a distinctive color, texture, odor or taste and cannot be confused with human food. The person shall apply the denaturing agent in such a way that it cannot be readily removed from the carcass or carcass material. Before applying denaturant to a carcass part that is more than 4 inches square, the person shall deeply score the carcass part with cuts not more than 4 inches apart.

(b) Use another denaturing method specifically approved by the department.

(a) FD&C Blue No. 2 coloring, in an amount sufficient to impart a definite blue color to all surfaces of the material.

(b) FD&C Green No. 3 coloring, in an amount sufficient to impart a definite green color to all surfaces of the material.

(c) Ground hard bone, No. 8 mesh, when uniformly incorporated into ground or emulsified material at a rate of 6% or more by weight.

(d) Ground hard bone, No. 5 mesh, when uniformly incorporated into ground or emulsified material at a rate of 4% or more by weight.

(e) Finely powdered charcoal, in an amount sufficient to impart a distinctive coloring to all surfaces of the material.

(f) Course ground charcoal, No. 10 mesh, when uniformly incorporated into ground material in an amount that is adequate to impart a distinctive coloring to all surfaces of the material.

(g) Low grade offal ground with the material so as to make the material readily distinguishable from any human food.

(gg) Liquid charcoal, in an amount sufficient to impart a distinctive coloring to all surfaces of the material.

(gr) Black dye, in an amount sufficient to impart a distinctive coloring to all surfaces of the material.

(h) Other denaturants approved by the department, when used in ways and amounts approved by the department.