I'm planning on cooking 12 racks of st. louis spare ribs. Any suggestions on best methods with the 640? Can I use both racks? Will I need to rotate? How frequently? Any advice appreciated. Thanx-mac
I would rotate every 45 minutes minimum. Since you are opening the door more often, they will take longer to cook. Rotate top to bottom, side to side.
Cooking 12 will be a chore and a messy proposition (especially if you sauce). I did 9 and tried a rack but was unhappy and will never use a rack again. Honestly for that many I would start with an hour or two in the 640 and then make use of a conventional oven for about half of them.
Thanks for the info folks! I decided to do 6 at a time. Have three on top at an angle so they don't hang over the grates, and three on bottom.