MadSci Network: Chemistry

Subject: What is the pH of spoiled milk?

Date: Thu Jun 17 13:15:12 1999
Posted by Carrie James
Grade level: grad (non-science) School: University of North Carolina at Chapel Hill
City: Chapel Hill State/Province: North Carolina Country: USA
Area of science: Chemistry
ID: 929643312.Ch

I have been writing a paper on milk and milk properties and have 
had difficulties identifying the pH of spoiled milk.  I know that 
fresh milk has a pH of anywhere from 6.0-7.3 and that curdled 
milk has a pH of 5.3, yet I cannot find at which pH level milk is 
considered spoiled (when it starts to smell bad but before it 
actually curdles).  Any help you can give me would be 

Re: What is the pH of spoiled milk?

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