Love this list.  We learn to make cheese!

Something you said,

>Another complexity that I found during my research is that the specific
>heat of the milk will change as time goes by because it will solidify
>(will change from milk into cheese).

suggests that reactions inside the mixture will absorb or release heat as 
they happen.  To incorporate this idea into your remark, I'd say that 
nothing can just change its specific heat unless it changes into something 
else, and that something else will have to give up the extra heat (or 
absorb the needed heat).   Simple melting and freezing exhibit this, 
too.  This will interfere with your predictions.

Though, I am guessing the effects are small, because no one has mentioned this.

Barry

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist