We Tried the Blue Milk at "Star Wars: Galaxy's Edge"
When Disney was planning to open a Star Wars-themed land, they wanted to know what the famous blue milk from “A New Hope” would taste like. And the only way to do that was to, well, create ‘blue milk’. So, the big question: What does it taste like? The Daily Meal website was able to try the famous intergalactic beverage at a press preview for Star Wars: Galaxy’s Edge and can confirm that it’s delicious and refreshing, albeit mildly confusing.
The semi-frozen beverage is creamy without being heavy, thanks to its lactose-free base of coconut and rice milks. (In the films, it’s the milk of the wooly banthas native to Tatooine.)
The flavor is slightly sweet with notes of tropical fruits that are hard to identify. There are touches of dragon fruit, pineapple, lime and watermelon that are absolutely not what you’d expect from a light blue beverage ... the blend of fruits keeps you guessing — and drinking. Before you know it, the drink is gone. And you’ll wish you had more.
Blue milk isn’t the only beverage available at the Milk Stand. Guests can also buy ‘green milk’, which Luke Skywalker drank straight from the teat of a female thala-siren in “Star Wars: The Last Jedi.”
That drink tastes more like it looks. It has the same creaminess as the blue milk (thanks to the same coconut and rice milk base) but the notes are much more floral and citrus-heavy. Think of oranges, passion fruit and perhaps a hint of elderflower.
Both blue milk and green milk cost $7.99 each.
https://www.thedailymeal.com/travel/blue-milk-review-star-wars-galaxys-edge-disneyland/053119
= new reply since forum marked as read
If we know that chocolate milk comes from brown cows... 
Maybe it's the coconuts? Blue and green coconuts would make sense.
