In reply to spartafan:
> Thanks for the replies.
> Sorry, I forgot to say that the flask is now redundant, I don't have the lid and didn't want to throw it away.
> So, was just wondering if I could have re utilised it.
As someone else pointed out, given that the design of a vacuum flask is almost solely to prevent heat ingress, of all the things you might re-utilise it for, a stove pot is the least likely do be of use.