As the original wine does not add any substances except white wine, its alcohol molecules still maintain good stability. In the aging process, the liquid in the container breathes the air with proper dry humidity through the container at proper temperature. As time goes on, the wine will become softer and more fragrant. The long-term production experience shows that the container material is closely related to the quality of wine. The main storage containers of Chinese liquor enterprises are as follows:
Chinese famous wine is usually stored in traditional pottery jar. However, due to different materials and techniques, the maturation effect of taotan liquor from different producing areas is quite different. The existing data show that the ceramic altar has a rough structure, a large water absorption capacity and a general wall thickness of about 2cm. In addition, there are many kinds of metal oxides in the ceramic altar. Metal ions will dissolve in liquor storage process, accelerating liquor aging. The newly distilled liquor is spicy, strong, sweet and has the bad taste of bran. When it is cooked in old age, it can add fragrance, reduce the stimulation of the new liquor, dry and spicy, and make the liquor harmonious and mellow. The seal of earthenware containers is usually tied with plastic cloth, and then compressed with panels, boards or sandbags.
There are also leakage and volatilization during storage. Generally, the air leakage rate of the old pottery altar is 3% - 5%, and that of the new one is about 1%. Before using the new pots, the winery filled the pots with water to check whether there was any leakage caused by hidden lines or other reasons, and continued to check during the use process, but the leakage of the old pots was still inevitable. This is determined by the material of ceramic altar and its own production process.
The basket is woven with thorns or bamboo strips. The wooden box and cement pool are pasted with pig blood as one of the traditional wine containers. This so-called blood is a kind of plastic protein colloid salt made of pig blood and lime, and alcohol forms a semi permeable membrane. Its characteristic is that water can penetrate, but alcohol can't. It has good leak proof effect for wine with alcohol content over 30%, which is called "wine sea".
Aluminum can is one of the earliest wine containers. In the use process, with the extension of storage time, the organic acids in wine have corrosive effect on aluminum and produce turbid precipitation. Large wine enterprises have long stopped using, and now use stainless steel tanks. The structure of stainless steel wine barrel is stable, which is characterized by tight molecular structure of the original wine, relatively slow oxidation speed, and will not affect the quality of the stored wine.
The above is the detailed introduction of stainless steel inner solid wood wine barrel to hot wine containers. To learn more, please click /