3-2-1 is for St. Louis ribs, 3 hours uncovered, bone down, 2 hours wrapped, and then 1 hour uncovered to finish, all at 225. Baby backs are 2-2-1. I despise this method, people think it’s a magic formula for all things bbq, yet dont even understand the formula. I’ve read so many times. “I did the 3-2-1 method but…”. They dont cook at 225, they do baby backs, i even saw a person do a brisket this way. Formulas dont work because every cook is different, every individual protein is different, and in this case, it’s specific to a particular type of rib. I strongly suggest that if you have a way of cooking ribs that you like, keep doing it. Sent from my iPad using Tapatalk