It’s a vintage presto from the 70s. This only started happening when I started using vinegar in the canner water

by Time_Ad7995

4 Comments

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  2. Optimized_Orangutan

    How hard is your water? I’ve never seen mineral build up there but it looks like mineral build up from hard water. Possibly starting now because the newly added vinegar started stripping minerals that were already deposited in the canner. Recommended scrubbing the whole thing with some vinegar and see if it goes away.

  3. Snoo38376

    Would this lead to anything dangerous down the road?

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