It would be nice for camping, hiking, banjo festivals, band practice, relaxing on the beach, leaving in the car while you go for a surf, playing golf - pretty much any situation where you want to have a few cold homebrews but can’t or don’t want to bring a cooler.
Let me say that I suspect a thermos WOULD hold the pressure just fine. but the cap and threads on this one are designed and tested to hold a few atmospheres of pressure while I suspect the thermos bottle is not. I have used mason jars which are really only designed to hold a slight vacuum, and my water bottle (one of those glass thingies with the silicone sleave) is filled with sparkly water every day without any problems, although it does leak if not upright.
FYI, I’ve got two of the NB SS growlers and they are excellent. You could achieve the same result by packing your glass growler in an ice-filled cooler, but these take up less space and they are really convenient.
What do you all think about the possibilities of filling it with fully carbed/conditioned brew from 12 oz bottles?
I assume when you’re talking about ‘holding pressure’ you’re talking about filling it from a keg with a beer gun or equivalent. Not being set up for kegging, I was wondering if you could fill any growler (glass or stainless) with beer from several 12 oz bottles in the morning and still expect it to be carbonated enough come say 4:00?