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Use only straight-sided mason jars and fill them to the freeze -fill line. However if you look at your container youll probably notice a line somewhere near the rim of the jar.
To be fair though you can still use non tempered glass for freezing food.
Can i freeze ball glass jars. Ad Improve Your Business ROI - Get A Better Deal On Glass Jars. You can freeze glass jars of almost any variety as long as a few precautionary steps are taken. This largely comes from the fact that if care isnt used then the jars could shatter in the freezer.
However with just a few precautions you can freeze mason jars with minimal risk of breakage. Dehydrate your own survival food. Why Glass Jars Shatter When Frozen.
In general you can freeze the contents of a mason jar for 3-5 months. In the US you might hear mason jars referred to as ball jars since Ball was the first company to make canning and mason jars. Kerr is another big brand in mason jars along with Golden Harvest.
Use only straight-sided mason jars and fill them to the freeze-fill line. On Ball and Kerr branded jars which are made by the same mason jar manufacturer the freeze-fill line is a thin line found just below the threads about an inch from the rim. Ball makes mason jars specifically for freezing.
Theyre made with a straight shoulder. That means theres no curve around the neck of the jar which makes it easier for them to stand up to low temperatures and expanding liquids. And the answer is.
You can certainly freeze food in glass. But you must must must be certain to leave plenty of headspace empty space at the top of the jar so that the food can expand as it freezes. This is assuming your food has water in it.
If you want to freeze food in glass containers you need to pick containers that are safe for freezing. That means that the glass is tempered as non-tempered glass has microscopic air bubbles that will expand and contract when the glass is exposed to extreme temperatures as it is when canning freezing or baking. Anytime you freeze in a glass jar that has shoulders you have to make sure that the broth stays below the shoulders while it freezes and expands.
That means that the broth should be 2-3 inches below the shoulders before you stick it in the freezer. Use Wide Mouth Mason Jars. You can freeze liquids in mason jars and store them for several months in the freezer.
Use only straight-sided mason jars and fill them to the freeze -fill line. On Ball and Kerr branded jars the freeze -fill line is a thin line found just below the threads about an inch from the rim. Ball did make wide mouth canning jars which were also suitable for freezing.
The bottom was slightly narrower to allow for expansion at the top. Ball also made a wide mouth straight sided jar. I suppose you could use that for freezing also.
I love the new Ball screw top freezer containers. They are available in pint and half pint sizes. Glass is completely safe in the freezer provided its tempered and you follow the instructions.
Sadly the majority of these glass jars and containers dont come with instructions on how to use them in the freezer. However if you look at your container youll probably notice a line somewhere near the rim of the jar. If youre still nervous then try freezing in the jar without the lid on.
Once the liquid is frozen screw the lid on tight and youll be fine. You can see in the photo below how the liquid rises when its frozen. It rises in the middle and has a hump like a camel.
Like any healthy lifestyle change learning to freeze food in glass jars does require a bit of upfront effort. But once youve got the system down its not much different from freezing food in plastic containers. How to Freeze Food in Glass Jars.
I freeze broth beans tomatoes soups and more in glass jars. Mason jars such as ball jars are most likely made from tempered glass. Unfortunately the glass containers from your groceries like spaghetti sauce jars might not be the right fit.
To be fair though you can still use non tempered glass for freezing food. Yes just as youd use any freezable container if you have raw meat it should work to freezekeep in mind youll need to leave room at the top as things expand when they freezeto avoid cracked jars. See the full step-by-step.
How to freeze anything in a mason jar. Ad Improve Your Business ROI - Get A Better Deal On Glass Jars.