How does freeze branding work?
Freeze branding kills the pigment-producing cells in the hair follicle. Therefore, when the hair regrows where the brand was applied, it is white. Freeze branding is done with special copper or bronze irons cooled to -100° to -300° F. The area must be prepared so the iron touches the skin, freezing it during the branding process. The first day after branding, the skin swells producing a welt in an outline of the brand. In two to three weeks, the brand will form a scab and peel. Six to eight weeks after branding, healthy unpigmented hair (white in color) will replace the scab. Freeze brands work best on black, dark red, or red animals. However, satisfactory results on lighter colored animals can be achieved by leaving the irons in place for a longer period of time which will completely kill the hair follicle. This results in a brand similar to a hot brand with more hide damage than normal freeze branding.