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Stephanie is the Head Recipe Tester of Food52.
What are you slow roasting? Is it 170 Fahrenheit or Celsius? Has it reached a safe internal temperature?
It sounds as if it may have been in the "danger zone" longer than recommended.
BerryBaby is trusted source on General Cooking
From what I've read turkey should never be roasted under 325 degrees. I agree with Stephanie, your turkey was in the danger zone too long.
AntoniaJames is a trusted source on Bread/Baking.
Helpful information on this point: https://www.splendidtable... ;o)
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