-for my CX, I pull food the night before, aiming for the 12 hour mark so their gut is empty and you are less likely to perforate an intestine and introduce fecal matter into the cavity while cleaning.
- I Set up the yard bird chicken plucker with hose going to it, the day before.
-have a second hose set up for rinsing and cooling the scald water.
- I set up 2-3 sharp knives with rubber handles and place them within reach of the hanging kill cones.  I sharpen them till I can shave hair off my arm… razor sharp.
- before beginning, I cover the coop with tarp on the side that would have a view of the killing area.  Your remaining chickens should not be exposed to the site of their brethren being executed… it’s stressful.  (Check out the book: animals make us human)
- I set up the scalding water to about 130-135 according to a laser temp gun. If it’s any hotter I get tearing of the skin or even setting of the feathers… you want it just hot enough for the feathers on the legs to come right off when pulled with about 40 seconds of soaking while pushing and rotating the bird in the water (holding on to the feet) to work the air bubbles out of the feathers/get the hot water to work it’s way under the feathers.  You can go a bit hotter and faster but I find this temp gives me more control of the process, being less likely to over scald, which is to be avoided.
- I set up kill cones over blood catch buckets.  I do four at a time, holding them in a dog kennel for only minutes before they are dispatched.
- I take the birds, one at a time, grasping them around their sides, keeping their wings from flapping and hold them upside down for 15-30 seconds so they get disoriented.  This way the blood rushes to their head and gorcks them out a bit, prepping them for a low drama dispatch.
-once in the cone, I reach up in the cone and grab their head, stretching their neck out, cutting a bit below each side of the jaw, severing the carotid artery… causing their blood pressure to drop precipitously so that they pass out instantly.  Within a few minutes they will jerk about, they are not alive at this point.  During that time I have two screws placed below each kill cone so as to secure their head to reduce the amount of blood that goes all over the place.  After they are done jerking I chop the head off while in the cone and let bleed for a few more minutes.
- I do about 20-25 chickens in a go, dispatching of them 4 at a time, placing them on plastic after, waiting till they are all ready for the plucker.  You have to remember that you are running against a biological clock from here out.  You don’t want a chicken to sit for two long with feathers before plucking, not do you want it to stay warm with viscera inside for too long… your aim is to get them cleaned and cooling, ASAP.
-I use a yard bird chicken plucker.  Dip them in the hot water, holding them by the feet.  Turn on the water to the plucker, then hit the switch, then drop two birds in at a time.  Within about 30 seconds they are squeaky clean.  If there are still feathers, then I either adjust up the temp a few degrees on the water and or increase the scalding time by 10-15 seconds.  If there is any sign of tearing of cooking of the skin, I add cold water to the scalder and lower the flame.
-I scald  and pluck two birds at a time,rinse throughly, multiple times.  I rinse my hands, change out gloves, if wearing disposables, at this stage and again right before final rinse as they go into the coolers and do my best to begin tightening up my mind set from the ultra dirty, high microbial killing and plucking phase to the level of sanitation you’d want for food handling.  Then we are on to hanging by one leg to disembowel.
-beforehand, I set up two cleaning stations with a medium length knife.  I attach a screw and wire with washer on the fence to hang them by one leg.  It’s a very handy way to position the bird for the process!  It’s a little hard to describe but there are pictures on line of this nifty “gadget”.  See my ongoing thread on the subject for pictures.  You make a loop with lamp cord or some other coated wire, make a loop knot, place the other end through a small washer, and hang the knot on a screw on the fence or post.  Put one chicken foot through the loop and synch down the washer to hold the tension.
-once the carcass is hanging, I remove the other leg, then I make two slices on either side of the vent, long ways, up against the protruding bones to either side of the vent (watch some videos on butchering to avoid puncturing the intestines).  I then reach in and pull the intestine away from the back bone and cut the back part of the vent free, then make a careful cut, avoiding the intestines to completely encircle/free the vent, which I leave hanging outside the cavity, so it does not leak feces into the cavity.
-once the vent is loose, I remove the excess neck, if I haven’t already, then I take one hand and enter the cavity and scoop free as much connective tissue as possible from the rib cage etc, for a more easy removal of the viscera, making sure to free the lungs and heart as much as possible, then I pull the entire viscera out in one go (ideally), if there is resistance I reach further in to grip and keep pulling steadily, trying to get the remainder of the crop and all to come with it.  On the way out, I pinch the gall bladder to prevent bile from coming out as I and remove the liver, setting it cleanly into a glass lock on a shelf for further cleaning later.  Everything else goes into a bucket and later buried.
-from there, I cut off the second foot and move the chicken to an ice water bath, to quickly begin dropping the body temperature.  (I buy my ice the day before and drop the temp to about -20f, dramatically improving the effectiveness of the ice).  You don’t want to kid yourself, backyard chickens, even organic, are full of microbes, you want to take this seriously, at every step I angle to slowing the spread of microbes and dropping the temp so they can’t breed.  I find it’s a good idea to make a solution of bleach in a spray bottle and use it pretty liberally on any surfaces you will be using from this stage onward.
-after processing all the chickens, I move them into a cleansed cooler to rest the meat, layering with ice.  The coolers get monitored once or twice a day, they stay outside if cool enough, the surface temp is monitored with laser temp gun, and kept in the 20-30’s f, but not freezing the meat, adding more ice as needed to prevent any parts from going uncovered.  I rest the meet like this for 3-5 days, then vacuum seal with food saver and freeze.  I repeat this process about every 6 months to a year to feed my family of four.
- I tend to bake my chickens for about 90 minutes, one last stop gap to preventing bad microbes from entering your family’s food chain.
-all told, it takes me about 6 hours to process 25-30 chickens.