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The point of canning is that refrigeration it not required. In fact it preceded refrigeration by about a century.

• xeromal 4y ago
  I meant an open can.
  • EricE 4y ago
    If you have an open can then all bets are off - if out for more than a few hours (or definitely if overnight) safest to toss it. Canning only preserves as long as the can is sealed!