We don't need more to realize that we cannot trust a cow. What can we expect from an animal unable to make some excellent tea? Fortunately, bees are sufficiently well-mannered to make some delicious honey. It would be hell on earth if beehives were full of coffee or orange juice...!

If she did make tea, it would probably be moolong. : )

When we drove by the farms as a child, my father used to tell me that the brown cows had chocolate milk!

I think steven has corrected your sentence realy funny and strange question!! tea is an incomplete food and the calf needs a complete nutriment that is milk , milk is the only complete natural food that could exist. And about the production of the milk, we need a course for that, We need a vet here :D

If cows eat grass and drink water, why do they make milk but not tea?