Moutai is divided into seven rounds. There are seven links in the production and brewing of Maotai-flavor liquor. As one of the "living fossils of the traditional brewing technology of China liquor", the extremely complicated maotai-flavor technology of maotai-flavor liquor left a mysterious impression on people. There are seven rounds in the production of light-based wine. Among them, the third round of liquor is the key "golden wheel" for the output and quality of maotai-flavor liquor. First, the second round of wine was sour and slightly fragrant, while the sixth and seventh rounds of wine were bitter and slightly fragrant. The maotai flavor of the third, fourth and fifth rounds of wine is better. In these seven rounds of wine, the sauce flavor and burnt flavor gradually increased from one round to seven rounds. The second and third rounds of wine are slightly sesame-scented, and the overall quality and taste of the third, fourth and fifth rounds of wine are the best.