This chapter of the Deep Rock Galactic guide has all the information about Malt Star - where to find it, how to identify, and what it can be used for.
Malt Star is one of the additional resources available in Deep Rock Galactic. This strange plant with flowers shaped like green and blue stars is used for brewing liquor or buy a beer concession at the bar on the space station.
Malt Star can be found throughout the planetary system. They usually grow near the ground making them accessible to any character class.