1. China liquor has a compound flavor with esters as the main body. It is made from starch (sugar) as raw material and koji and yeast as saccharifying and fermenting agents through cooking, saccharification, fermentation, distillation, aging and blending. Strictly speaking, the blended wine made of edible alcohol and edible spices can't be regarded as liquor. Liquor is mainly concentrated in the triangle of Renhuai in Guizhou, Yibin in Sichuan and Luzhou in Sichuan in the upper reaches of the Yangtze River and Chishui River basin. It has the largest and best quality distilled liquor producing areas in the world, namely, Maowulu, the three famous wines in China. Its liquor industry cluster shoulders half of China liquor industry.

Second, the analysis shows that in other diseases, even drinking a small dose of 25 grams of alcohol every day will significantly increase the risk of various diseases. For example, the risk of oral cancer and pharyngeal cancer increased by 82%, esophageal cancer increased by 39%, laryngeal cancer increased by 43%, breast cancer increased by 25%, essential hypertension increased by 43%, and cirrhosis increased by 1.9 times. In addition, the risk of colon cancer, rectal cancer and liver cancer has also increased slightly. If you drink more alcohol, the risk of these diseases will increase greatly.

Thirdly, fusel oil is one of the aromatic components of wine, but its content is too high and it is toxic to people. Its poisoning and anesthetic effect is stronger than that of ethanol, which can make the nervous system congested and make people have a headache. Its toxicity increases with the increase of molecular weight. The oxidation rate of fusel oil in the body is slower than that of ethanol, and its residence time is longer.

4. The main components of fusel oil are isoamyl alcohol, amyl alcohol, isobutanol and propanol, among which isobutanol and isoamyl alcohol are more toxic. When the content of protein in raw materials is high, the content of fusel oil in wine is also high. The boiling point of fusel oil is generally higher than that of ethanol (the boiling point of ethanol is 78℃, the boiling point of propanol is 97℃, and the boiling point of isoamyl alcohol is 13l℃). In the process of liquor distillation, it is necessary to control the temperature and reduce the fusel oil content of finished liquor by pinching the head and tail.

5. Aldehyde in liquor is an oxide of alcohol with corresponding molecular size, which will also be produced during liquor fermentation. Low-boiling aldehydes include formaldehyde and acetaldehyde, while high-boiling aldehydes include furfural, butyraldehyde, valeraldehyde and hexanal. Aldehydes are more toxic than alcohols, among which formaldehyde is the most toxic, about 30 times more toxic than methanol. It is protoplasmic toxin, which can coagulate protein, and 10g formaldehyde can kill people. In the case of acute poisoning, cough, chest pain, burning sensation, dizziness, unconsciousness and vomiting may occur.

6. Liquor brewed with pectin-rich raw materials will contain a lot of methanol, which is very toxic to human body, and 4 4- 10/0g can cause serious poisoning. In particular, methanol oxides formic acid and formaldehyde are more toxic than methanol, formic acid is 6 times more toxic than methanol, and formaldehyde is 30 times more toxic than methanol. If you drink too much liquor, methanol will accumulate in the body and it is not easy to be excreted. Its metabolites in the body are formic acid and formaldehyde, so a very small amount of methanol can also cause chronic poisoning.