Ok, dumb question: How long will chicken stock keep in the freezer? I try to make a large amount and freeze various sizes--1 cup, 2 cups, and 3 cups--in different containers, but my containers usually have some space near the top. I "burp" them, but there's still air in there I'm sure. How long before the taste suffers (too much) or the brew becomes toxic? I've googled and searched this site as well, but haven't come across time limits. Thanks!