How to extinguish the fuel tank of takeaway hot pot?

Disposable hot pot uses alcohol fuel, which can be covered with a cup or lid and will go out.

Drum furnace is also called portable butane gas furnace; It refers to the non-fixed cooking kitchenware with butane gas as the main fuel and liquefied gas as the fuel, which is directly heated by fire and is mostly used for outdoor leisure and hotel supplies.