Unroll a large piece of pink butcher paper onto a work surface. Spritz the paper with water.
Place the injected chuck roast toward one end of the paper.
Roll the paper over the roast, then roll the roast one time and tuck in the sides of the paper. Tightly roll the roast up, tucking in the final flap of paper. You want it to be tight and not have gaps of air.
Replace the temperature probe by piercing it through the butcher paper and place the wrapped roast back on the top shelf.
Continue cooking until the internal temperature reaches between 200°-205°F.
Remove the roast from the smoker and place in an empty aluminum pan. Let it rest for 1 hour in a warm (170°F) oven.