Quick Casein Test
Hi, Cheese People
If you have a automated milk composition analyzer it would be possible to get a quick indication of casein by putting the milk through and then setting it with rennet. Take some of the whey and put it through the analyzer as well. Since the rennet binds the casein, by doing a subtraction of the whey protein from the whole milk, you should get the casein value.
Of course some of the more modern analyzers can do the casein automatically, anyway, but this method should help the other guys out there.
Leon the Milkman