I recently Asked Kevin Gillespie of Top Chef about Q and he said that the fat drippings falling onto the coals is what he uses to generate the flavor in the cooking of his hole hogs - However if you siphen the fat drippings off you could probably power a lantern or your UDS - there's a company in Florida that takes all the human body parts left over from surgery and uses it for fuel. Im not saying Im just saying I know too much about alternative fuels. One humpback whale produces 30,000 gals of oil hi jack this thread? Im staying on topic he said Fat drippings
Proud owner of a Matt (RIP) MEYER METAL WORKS CUSTOM 6' off set smoker. WSM 18" Weber 18" and one Electric Cookair.