Are canning jars tempered 2024?
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Studied at University of California, Los Angeles (UCLA), Lives in Los Angeles, CA
The glass used for Ball and Kerr canning jars is not tempered for oven use and is not meant to be used in baking projects. ... The jars should not be used as bakeware, as most bakeware is tempered and can withstand greater temperature differentials."
2023-04-18 03:42:00
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Noah Baker
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The glass used for Ball and Kerr canning jars is not tempered for oven use and is not meant to be used in baking projects. ... The jars should not be used as bakeware, as most bakeware is tempered and can withstand greater temperature differentials."