Why is milk white and not the color of the food the cow eats?

Question

I would understand if milk was similar to flamingo feathers, which turn pink when they eat many shrimp. But why is the milk white? I assume the color has to come from somewhere, but cows mainly eat grass and water.

In: 3

Answer 1

Casein my friend. Add vinegar to milk. Casein precipitates. Clearish fluid left. Casein dries to a sweet hard ball. Sweet to play with that is.