Landscapes of the Main Components, Metabolic and Microbial Signatures, and Their Correlations During Pile-Fermentation of Tibetan Tea.

•The transformation rules of Tibetan tea components were uncovered.•The structure of the microbial community in Tibetan tea was elucidated.•A co-occurrence network linking the microbiome and components was constructed.•Theabrownins can serve as an indicator to assess the extent of pile-fermentation.