Why acidity matters: The pH level of your food determines whether it can be water bath canned or must be pressure canned to prevent dangerous bacteria like C. botulinum. Essential gear: A water bath ...

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Q. What is open kettle canning and why is it considered unsafe? Open kettle canning consists of filling (hopefully) clean jars with hot product and placing lids and screw-top rings on the filled jars.

We may receive a commission on purchases made from links. Some canned foods are must-haves in your pantry. They're nonperishable, meaning they last much longer than anything you'd keep in the fridge.