It's essential to remove any membrane or silverskin from the ribs because it will become tough and rubbery as it cooks. It can also prevent the dry rub from penetrating the meat. If your grocery store has a butcher, they are usually happy to do this for you. If not, follow these DIY instructions, and check out my video to see how it's done. 1. First, turn the ribs' meat side down. 2. Next, insert the blunt edge of a small knife blade under the membrane on the bone side of the rack. You want to pry up a corner of the membrane. Remove the blade, and then insert your finger to loosen up the skin even more. 3. Then, grab the corner of the membrane with a paper towel and carefully peel it off down the length of the ribs. If the membrane tears, repeat the steps above until it is all removed.