I believe that s what they do in the restaurants; it s what I do at home. Sometimes I put a butt in before I go to bed and then pick it up to bring back to work the next day at lunch. Or I ll stop home at noon and put in ribs or a turkey for that nights supper as they take about 6 hours. The way these are sealed and insulated no extra moisture is required. I do like to mop the ribs the last hour.