How long can pasta sit out at room temperature?

Leftover pasta should be refrigerated within 2 hours of cooking, particularly if it has been used in a casserole, or mixed with a sauce or other  high-moisture food. Bacteria grow rapidly at room temperature. Plain pasta will dry out at quickly room temperature.
 
Source(s):
Canadian Food Inspection Agency "Food Safety Facts on Leftovers"

 
 

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