If you followed the required fields are marked (process) of 3 2 1 ribs recipe above, your ribs should not be dry. However, if they are dry, make sure that you're adding enough liquid into the foil during the wrapping step. Also, you could also add a tray of water on the grill for the first 3 hours of smoke. This will help keep the air in your smoker humid and your meat moist.