Call it >3 hr. Ribs. New 18 qt. Roster retired Nesco after over 20 yr.. 3 racks Baby back ribs. Trim excess fat remove silver skin ( for us butter knife and paper towels help). Used brother Marks Dillion dust to start. Cut in smaller pieces add 1 1/2 cups water. Set @350* first time using probably next time 300* . Pic of meat pulling back from bone. You see very little fat at the bottom of the pan. Takes barbeque bath , these are what we use 3:1. We weren't eating till later so pieces went in the oven to hear and eat. We used this method for big family party's 6/7 slab's.