Have you got enough room in your fridge instead?

I tend to make just enough to last me the week, and store it in the fridge in Kilner jars. I make sure there's a good layer of fat on top of each one. This eliminates any air, sealing and protecting the bone broth underneath, and should keep it preserved for several weeks at least. Once air is let in, the broth will remain good for a few days in the fridge.