A cheap pot grabber would do the job.
However, if you are wondering about a wire coat hanger, why not just try it out? Do it at home, so you are not left in a jam on the hills, if it doesn't feel sturdy enough at home in your kitchen, don't use it in the wild. If it works then great. (Just remember to try it out properly - manouvering it about whilst sitting/crouching, over the stove you use etc.)