Researchers successfully fermented miso in space and found it to taste good but different from miso made on Earth.
The miso made on the International Space Station (ISS) had a nuttier and more roasted flavor, possibly due to unique environmental conditions like microgravity and increased radiation.
The study suggests a "space terroir," akin to the unique flavor characteristics found in wine grapes, may exist in space fermentation.
The microbial composition of the space miso also differed from Earth miso, highlighting the impact of the fermentation environment in space.