I smoke one rack all the time! That's what I love about these smokers. When I used my Weber Smokey Mountain, I felt like I had to load the thing up, because it required a bit of effort, and that effort wasn't worth it for one rack of ribs, not to mention the same amount of charcoal was needed/consumed for 1 rack or 8 racks. With the #1, there is no guilt in smoking one thing at a time. They are so easy that you can smoke every day with the SI's, so you don't necessarily have to create extras for leftovers.