Milk, Gray in Color, was a type of milk with a gray hue. It was discovered on the planet At Attin in the time known as the New Republic Era. Wim, a human, consumed a bowl of cereal soaked in this gray milk the day preceding his Career Assessment Test, while his father looked around for his passcard.
The existence of gray milk, despite its unknown origins, was first shown in "This Could Be a Real Adventure," which is the initial episode of the Star Wars: Skeleton Crew show on Disney+, and was released on December 2, 2024. Later on the same day, the episode guide confirmed what it was.
Ravi Cabot-Conyers, the actor who portrays Wim, has stated that the gray milk he had with his cereal had a "gray" flavor.