High-temperature Daqu metagenome
High-temperature Daqu is a traditional solid-state fermentation starter used in the production of Chinese sauce-flavor Baijiu. High-temperature Daqu samples were collected from a Baijiu distillery in Luzhou, Sichuan Province, China. Sampling was performed at five key stages covering the entire production and storage process: the start of fermentation (B), late fermentation (C), and after 2, 4, and 6 months of storage (Z2, Z4, Z6). At each time point, three independent composite samples were obtained as biological replicates. Each composite sample consisted of three Daqu blocks taken from the upper, middle, and lower zones of the fermentation room, which were crushed and thoroughly mixed.