This research explains how traditional flipping techniques during Daqu (a fermentation starter for Chinese Baijiu liquor) improve its quality. By comparing fermented Daqu that was flipped versus unflipped, scientists discovered that flipping creates better conditions for beneficial microorganisms to thrive, leading to more desirable flavors and higher enzyme activity. The findings suggest that flipping works by managing temperature and moisture, creating a simpler but more stable community of beneficial bacteria and fungi that work together to enhance the fermentation process.