When boiling water in the canister, followed by its premises in a backpack and carrying on the hands, even when it is cooling from it, steam continues to go and the sounds of boiling, and if you leave the backpack on the ground and put the canister out of it, the “hot spot” remains on the ground on the ground on the ground on the ground the place of the backpack, the effect lasts throughout the game session (until re -entry)