I used to jump through all kinds of hoops, adding this and that. I've found that it's more practical to just put the carcass (skin and gibblets and all) into the crock pot. Cook on low all day. Change the water 3x, saving the stock in the refrigerator. The first batch should make a firm jelly.
My instructions (All American) say 15 min @ 10 psi.
My instructions (All American) say 15 min @ 10 psi.