After 3 hours of smoking, it’s time to get the ribs tender. Some pitmasters wrap their ribs in foil at this point. While this will certainly work to tenderize the ribs, it may trap too much steam—running the risk of overcooking. Garcia recommends wrapping them in unwaxed butcher or parchment paper instead.
Just before wrapping the ribs, Gonzalez of Gordo’s Tortas & BBQ recommends adding a little sugar and vinegar to the ribs. It introduces yet another layer of flavor, but be careful not to add too much vinegar—the steam it produces could overcook the ribs, and the flavor might become overwhelming.
To wrap the ribs in butcher or parchment paper, lay out the paper in a diamond shape. Place the rib rack horizontally in the middle of the paper, and fold the bottom corner up over the middle of the rack. Holding the folded bottom corner in place, fold the 2 side corners over then pull the top corner up and over. You can use a little masking tape to hold it in place while you wrap some kitchen string around the whole thing and tie it off.
Place the wrapped rack of ribs into the grill and cover. You’ll need to maintain the 225° heat for the duration of the 2 hours, so keep some charcoal going as backup. No more wood chips are needed at this point—the ribs are already smoked!
After 2 hours, the last step is all about letting the ribs rest and develop the last bit of bark. To do this, remove the ribs from the grill and unwrap them. (They should still be holding together just fine.) Put them back in the grill and cover—leaving the vents open. Let the grill cool off but try to keep it around 170°. After about 30 minutes, take a basting brush and spread a thin layer of sauce over the ribs.
If the ribs are starting to fall apart at the beginning of this step, get that sauce on there right away and only let them rest in the cooling grill until the sauce is caramelized. If they’re still holding together, though, rest them for the recommended 30 minutes so the bark develops, and then glaze them. It should take about 20 to 30 minutes for the glaze to turn a glistening dark-amber color.
Once the hour is up, rest the ribs at room temperature, uncovered, for another 10 to 15 minutes before cutting and serving.