Quick Answers
Is it safe to reuse canning lids?
When using the two-piece, self-sealing lid, the flat
metal disk should never be reused. The sealing compound
will not seal correctly after it has been used once. The
metal screwband, if not rusted or bent, can be reused.
Barbara Willenberg, Nutritional
Sciences, University of Missouri-Columbia
Last update: Tuesday, May 05, 2009
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