8 Ill. Adm. Code 70.90
Denaturing
Section 70
Section 70.90 Denaturing
"Denaturing"
methods defined:
a) Charcoal. When charcoal is used, it shall be in powdered or
pulverized form fine enough to pass through a 10 to 14 U. S. standard mesh.
b) Bone. Bone means enough ground bone present in the ground
horse meat, so that it can be easily felt when rubbing the ground meat between
one's fingers.
c) Color. Where coloring matter or ink is used for denaturing or
stamping, only green coloring shall be used, and shall be of ingredients
approved by the Department of Agriculture.
d) Hearts and livers need not be ground but shall be freely
slashed and shall be colored green.
e) All horse meat must be ground, chopped, or comminuted so that
no portion shall be greater than ¾" in any dimension, and the mass shall
be denatured. The only exception to this will be the sale of the whole carcass,
half carcass, or quarter carcass which may be sold to a licensed processor
after proper denaturing. Where the whole carcass, half carcass, or quarter
carcass is to be denatured, it must be freely slashed at least ½" deep
before the charcoal or coloring is thoroughly applied.