I camp four to five times a year. Growlers and a keg or two are a must. Actually, going next month, I planning on bringing 3 kegs. Though it is a bit harder when I go to bear country (Humboldt, Yosemite, Kings Canyon/Sequoia) since everything needs to go in a bear box (I have seen photos of cars ripped open just so a bear can get to a tube of toothpaste!). Thank god for my little 2.5 gallon keg, works like a charm in those situations.
As for this... I would try it for s***s and giggles. If it were at least ok, I would bring some if I started backpacking again.