Is there a way to tell, via smell, taste, appearance, texture, etc., if milk is spoiled?

By Alison Soltau

Jul 14, 2009

As regular milk perishes, it usually develops a fruity or unclean odor, turns sour from lactic- acid-producing bacteria, and it may form clumps. Science researchers at Cornell University and elsewhere identify several “off” flavors and odors associated with bacteria (e.g. fruity, rancid, unclean) and oxidizing processes, including “burnt hair” aromas and “plastic” flavors.
 
Source(s):
Cornell University Department of Food Science’s Milk Quality Improvement Program Factsheets: “Flavor and Odor Defects in Milk” 

 
 

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