Described is a method of sanitizing animal carcasses using aqueous streams having an antimicrobial composition added to the stream. The bladder is received in movable dies that selectively open and close about the bladder, and more particularly about a metal body received between the bladder and die. In certain embodiments, the motor controller tracks the length of the unspooled portion of the linear material andor reduces the spooling speed of the motor when retracting a terminal portion of the linear material. The user interface having the background screen formed from the at least one image may be displayed. The nut is coupled to the bolt and operatively engages the other abutment face.