We included a vial of beer yeast as bio-payload from Amsterdam brewers
Poesiat & Kater, to take it to the Stratosphere and back. At 2,5 g the vial was easy to include into the cubesat. Now we are in process of finding out if it survived the stratospheric trip, the cold and the wind, the solar radiation and the ozone layer… and if indeed it can be propagated to make Stratospheric Beer!)