Caveman brings up a good point...
Just keep jetboils use for boiling water...
Ive heated stew/casserole in mine twice, & flavoured rice only once, & the non-stick is marked/sight encrusties on it.
If im going to need to heat/cook food, i carry a small saucepan & the pot attachment...
I still carry/store mine in the packaging it came in...(would be a good 6 yrs now) & its very durable...
Admitadely mine is knocking around in back of car-- not in a backpack.
Another thing is i find them very efficient on fuel...!!
In comparison, they make those small butane burners very expensive to run.
I also carry the larger gas cylinder in the car as a backup, & a box of matches in almost every crevice...side pocket of pack, ammo box, console, glove box, passanger door, coffee n sugar box etc etc...
They are great in winter...fire up the jetboil as soon as youre outa bed & its boiled by the time youve had your morning pee...!!...
Ya gotta love that kind of efficiency...
The man who knows everything, doesnt really know everything...he's just stopped learning...