What is the brewing process of Luzhou-flavor liquor?

The brewing technology of Luzhou-flavor liquor is: solid fermentation in mud pits, blending of distiller's grains, mixed steaming and mixed burning.

Detailed introduction:

1, mud pit

A cellar made of earth. Pit pool, like cylinder and barrel, is a kind of fermentation equipment, which is only used as a container for accumulating fermented grains for fermentation. However, the aroma components of Luzhou-flavor Daqu liquor are mostly related to mud pits. The same raw materials, the same brewing technology and the length of cellar age have a direct impact on the quality and flavor of wine. Therefore, solid-state fermentation of pit mud is one of the characteristics of its brewing process.

2, continue to bad ingredients

The so-called continuous distiller's grains blending: in the original distiller's grains, a certain amount of sorghum is used as the brewing raw material and a certain amount of chaff is used as the filling auxiliary material, which is put into each retort, mixed evenly and cooked. This is done at the end of each round of fermentation.

In this way, the fermented grains in a cellar keep repeating, adding new materials and discharging some old materials. This operation technology can continuously ferment fermented grains for several years, so it is called "ten thousand years rotten". The longer the distiller's grains are lost, the more precursor substances are accumulated, which plays an important role in improving the aroma of wine.

3. Mixed steaming

Mixed steaming, mixed burning and continuous fermentation are integrated, and mixed steaming and mixed burning will occur after continuous fermentation. The raw and auxiliary materials are added into the fermented grains to be distilled in proportion, and the raw materials are put into the retort manually, and the firepower is adjusted so that the wine is steamed with slow fire first and the grain is steamed with high fire. In the same retort, the technological method of taking wine first and then steaming grain was adopted.