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We know there have been some recent questions about our canning lids and wanted to clear the air for our fans. After extensive testing by our Quality Assurance Team we have determined that it is no longer necessary to to pre-warm lids before use. If you desire, it is still safe to “simmer” your lids before use however, you should never boil them. To prep lids we recommend simply hand washing them in hot soapy water. Please let us know if you have any questions or concerns! We always love to hear from our awesome fans.
Boiling can over soften the compound on the lids which can lead to seal failures.