Mark Hamill is not a big fan of the blue milk he had to drink in A New Hope. The blue milk has become a part of popular culture over the years and it's no secret as to why. Star Wars: Galaxy's Edge now has the blue milk and the green milk from The Last Jedi, though they aren't technically milk at all. Those apparently taste pretty good and are more like an expensive milkshake, though they are completely 100% dairy free. With that being said, Hamill probably wishes he was drinking that instead back in 1977.
When Luke Skywalker takes down what looks like a tasty beverage in Star Wars, it actually made Mark Hamill want to vomit. However, the actor is a true professional and was determined to make sure it looked like he was enjoying every last drops. Hamill had this to say about what the blue milk tasted like on the 1977 set.
"Blue milk was 'Long Life' milk (used by campers because no refrigeration is needed) w/ blue food coloring. Oily, warm & slightly sweet, it literally made me gag, but I was determined to drink it on-camera. It was an acting challenge to appear as though I enjoyed it."
This comes after Mark Hamill revealed what the green milk tasted like on the set of The Last Jedi. As it turns out, the milk has gotten better with age, according to the Star Wars icon. Hamill says the green milk was "just regular coconut water dyed green in post-production," and called it "quite tasty." That does sound lightyears better than what the actor had to drink on the set of A New Hope and sounds similar to what is being served at Star Wars: Galaxy's Edge, but with a lighter consistency.
As for the "Long Life" milk Mark Hamill is referring to, it is a product that has been thermally processed at or above 280° F for at least 2 seconds. This leads to a longer shelf life and is why it does not need to be refrigerated. However, even normal organic milk is often treated in the same way, which some people claim is unsafe and unnaturally tasting. From the sound of things, Hamill was drinking something that was probably unsafe to consume, depending on the opinion. The Blue and Green milk at Star Wars: Galaxy's Edge is actually rice based. The Blue Milk tastes quite a bit like a blue raspberry Mr. Misty Freeze from Dairy Queen as if blended with Rice Milk. And the Green Milk is a lime flavor mixed with flowery overtones. Think hibiscus. Both are actually quite delicious.
Mark Hamill is still alive and well today, it's safe to assume the blue milk didn't have any long-term effects on his life or acting career. The actor is once again reprising his role as Luke Skywalker in J.J. Abrams' upcoming The Rise of Skywalker. It's the final movie in the Skywalker saga and it will more than likely be the last time we see the actor in the role, at least he seems to hope things turn out that way. You can check out Mark Hamill's Twitter reviews of the blue milk and green milk below.