"Preserving Jars" from Kmart (Australia). I'm confused that it says not for boiling water (I have done this and they didn't crack). Also, are the lids OK to use since they are all in one piece? I want to use them for pressure canning. (American jars like Ball are extremely expensive in Australia since they are not manufactured here. Trying to find affordable options.)
by Sacrilegious_skink
4 Comments
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You cannot use these for pressure canning. The Ball lids are designed to create a proper seal which prevents any bacteria getting into the product. These are not designed to do that and even though they may appear to seal, there is a risk that botulism or other nasties could get into your food and poison you and anyone else who consumes it.
The Ball lids aren’t that expensive, the big cost is the jars but since you can reuse them over and over again the price per unit does come down over time.
Edit – also pressure canning is much hotter than just boiling water so the risk of breakage is even higher with the wrong jars.
Do you think that means not to put them directly on a heat source? Like, don’t use one as a soup pot.
I’m pretty sure they don’t want your pouring boiling water in them like you’re making tea, because they could crack.
These are definitely not for pressure canning and I wouldn’t use them for wbc either.