now just start a fire not a blazing inferno just a calm fire or you can use the embers (lots of embers, this usaly works much better) set it some where in the fire where it will not fall over and watch it you will eventualy see smoke billowing out or it might start on fire. dont freak out just let it burn itself out and when there is no more smoke coming out take it out. what ever you do DONT! take the lid off right away just wait a little while for two reasons. one it is probaly really hot! and two if you open it before it cools, the oxygen will rush in and might start the whole thing on fire. then you run the risk of getting burnt and you will have to start over because the cloth is all burnt away.