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Old 06-05-2011, 11:58 AM
  #2  
MadQuilter
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Join Date: Mar 2009
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Do the tug test. Old thread can get brittle (particularly if it was exposed to sunlight) and if it is brittle, it will tear easily when you tug firmly. If it takes real effort to tear the thread off the spool, then it should be OK to use.
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