Hey gang, I've been using my 18" WSM for over a year now. Prior to each smoke, I'd clean out the ashes from the previous smoke. Earlier today, I used 2 chimmney's of Kingsford charcoal to smoke about 18 wings. After 2 hours, they were done (and tasty). But the smoker was still going at 300 degrees strong. Tomorrow, I plan on doing a few racks of ribs. Here's my question: Can I preserve and re-use the charcoal that's still in the smoker or is it still a better policy to dump and use fresh? It just occured to me that after I finish whatever I'm smoking, the WSM is still going strong for hours and hours until the charcoal burns out--it's a shame that it's a waste. Thanks!