Thread: The darndest thing just happened with one of my 9W-7s
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Old 08-07-2014, 06:20 AM
  #14  
Macybaby
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no - HEAT expands, cold contracts - that is why you run a LID under hot water, not the jar.

All except water - which starts expanding again when it freezes, which is a very, very good thing . . .
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