I make homemade stocks all the time and have always stored them in quart size disposable plastic deli containers. This obviously produces a lot of waste and I'd like to stop. For everything else in my kitchen, I use glass. I store things in big glass jars and only have glass tupperware-type containers for things. I've been trying to locate silicone containers for this purpose but I have not been successful. I've never actually done it, but I just assume that freezing things in glass containers is a no-no.
Any ideas? Or can anyone point me to silicone containers that might work for this purpose?