Free as in Free Beer

After reading the article I wrote earlier where opensource powers a milking robot, I saw another link where someone has brewed beer from milk.
There is also another link where they have posted a recipe for brewing beer under the Creative Commons License and so you can create your own open-source beer.
Who said “free as in free beer” is not possible.

Can someone try the recipe and tell whether it tastes the same as the original one?