Once the ribs have been on the grill for 30 minutes, it is time to move on to the second stage. The ribs should be browned on all sides. If they appear raw on the surface anywhere continued grilling for another 10 to 15 minutes, otherwise, move on to the second phase. Now we are going to make the ribs tender by steaming them with apple juice. The secret is to wrap the ribs tightly in foil. You want to make it as water tight as possible after pouring in the apple juice.
With a tightly wrapped packet, place the ribs back on the grill in the indirect grilling space. Now close the lid and increase the grill temperature to around 375 degrees F. At this temperature the apple juice will boil, tenderizing the ribs and cooking them quickly.