Can you put it in glass or plastic to freeze? I would be afraid the boxes would swell too much and burst, but then I've never paid close attention to how full they are filled.

Stock freezes particularly well, but I don't know that the freezer is going to do that much for it. The best buy date is the date after which you shouldn't expect a refund if it's not up to your standards, but the stock should be fine for another year, at least, as it is. It's worth using up, but I wouldn't worry that much about the date.

Thanks, that was my concern and I'd never really paid attention either. I can't tell shaking them if there is 'head room' in them or none.

I would not worry much about that sell by date on the carton.

If you are concerned, you can keep it in the fridge, unopened. Not sure that it woudl be any real advantage, though.

It will be fine for a good time yet.

I keep my home canned tomatoes in the fridge in the garage. It is a place to keep them and it keeps them from freezing in the winter. We bought this one without a freezer because we used to buy so much fresh produce and used to keep a lot more food around. It may or may not be of an advantage, but is offers a good storage for our situation.

That broth is going to be just fine. sure you will use it in the coming months.

I agree, it will be fine right where it is for a while. Though i would use it up this Fall and during the holidays.

And yes, it will freeze fine to use as a back-up if freezer space is no problem. Those boxes seem to have enough head space. Any doubts, test one in a bread bag or zip-lock on its side so the 'head space' is a much broader area. At least no risk of glass breakage.

I used to buy those at Costco every November. Always a fear of not enough stock. Much more valuable and convient as a shelf stable non-frozen liquid.