What is this white residue on my jars after pressure canning stock?

by Spoygoe

6 Comments

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  2. Narrow-Height9477

    Mineral deposits from the water you’re using.

    Add some white vinegar to the water in the canner.

    After the jars are removed and cooled a bit, wipe them with vinegar on a paper towel.

  3. Temporary_Level2999

    Likely it’s from hard water. Add a splash of vinegar in the canner next time and that should help!

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