Thanks rveal23! I had to laugh internally as my boss told me to purchase the pucks, and the only tough part was not letting her know anything was amiss. Unfortunately I do not think a temperature control will work so well for the low temperatures required for cold smoking after I read the specs of the Auber PID (minimum temp control=40F above ambient with smoke generator on). However, the Ziplock bag of ice trick posted by KyNola sounds like a good solution, and once I build some kind of cold smoke isolator, the cheese and lox I plan to smoke should be good, especially as we head into the cooler fall ambient temperatures.