1. Harm of drinking fake wine
Like the fake wine reported in the above news, it's okay. They just buy bulk white wine and blend it with clear water, which won't cause much harm to the human body after drinking it.
However, there is another kind of fake wine which is made of industrial alcohol. Its main components and harmfulness come from methanol. Alcohol, also known as wood alcohol and wood alcohol, is a colorless, transparent, volatile and flammable liquid. Acute methanol poisoning is not a frequent disease in clinic, but it usually manifests as life poisoning or acute occupational poisoning caused by fake wine, which has the characteristics of sudden group poisoning. Once it is not handled properly, it has a high mortality and disability rate, which will bring serious harm to the poisoned person.
methanol can be absorbed into human body through respiratory tract, skin and digestive tract. Methanol is absorbed quickly after oral administration, and the blood concentration can reach the peak in 3-6 minutes, and it begins to produce toxic effects. Most people's initial poisoning symptoms appear 12-24 hours after eating. Because people who take it by mistake will not realize the possibility of methanol poisoning, and its early symptoms are headache, dizziness, nausea, vomiting, lethargy and disturbance of consciousness, which is difficult to distinguish from drunkenness, so it is difficult to make early diagnosis. Although theoretically, the absorbed dose of methanol can be reduced by gastric lavage and catharsis, once obvious toxic encephalopathy and visual impairment occur, it is often not the early stage of poisoning, and the opportunity to remove methanol from the digestive tract is lost.
People can be poisoned by ingesting 5ml of methanol, which is one of the main components of industrial alcohol. Methanol is oxidized to formaldehyde by alcohol dehydrogenase and formaldehyde dehydrogenase in vivo, and then formic acid is generated. Formic acid can inhibit the oxidation and phosphorylation of human retina, making it difficult to synthesize adenosine triphosphate. As a result, it will cause cellular degeneration of retina and even turn into optic atrophy. Generally speaking, 5 ~ 1 ml of methanol can cause poisoning, and 3 ml can cause death.
2. How to distinguish fake liquor
(1) Taste identification
High-quality liquor is colorless and transparent, while the aroma of methanol is similar to that of alcohol, but it is weaker and softer. Its taste is also similar to ethanol. Liquor should be colorless and transparent. If the aroma and taste meet the sensory requirements, it is a good quality wine. If there is unusual fragrance or smell, it may be inferior wine; If the fragrance is weak, the tail is bitter and boring after drinking, most of them are too much water and insufficient alcohol. (2) visual identification
before visual identification, an identification step can be added before visual identification: sniffing.
pick up the wine bottle, put the joint between the bottle cap and the bottle mouth near the tip of the nose, and smell it carefully. If there is a strong or fragrant wine smell, it will be false. Moutai has a special maotai flavor. If you have a sensitive sense of smell, you can smell maotai flavor residue at the bottle mouth or even on cartons, cartons and other packaging materials. (By the way, a slight leakage at the bottle mouth can't be judged as fake wine, and there is also the possibility of wine leakage in the genuine product, but the probability of wine leakage is very small. )
(3) packaging identification
Identification of packaging materials The bottle of Moutai is an ivory glass bottle, sealed with a big red thread twist-off anti-theft aluminum cover, with five white words "Kweichow Moutai" on the top, and the bottle mouth has no internal plug. The whole bottle of wine is wrapped in a high-quality square leather paper and packed in a color box: the outer packaging color box is made of imported white paper and corrugated. The font and color on the box are consistent with the trademark and back sticker.
The fake "Maotai" is sealed with different shades of red rubber caps, some are transparent without words, and some are fake "Maotai". The bottle caps are white and some are red. The cover also has different wall patterns, including yellow twist-off aluminum cover and plastic cover with twist-off yellow aluminum cap. There are several kinds of inner plugs, such as spiral type, belt waist line and flat top. The outer packing box is made of unqualified and inferior leather paper or other materials.
3. How to judge grain wine
Method 1 of distinguishing grain wine: Real traditional grain brews wine with fragrance but not choking, slightly bitter but not astringent. The aroma of grain, wine and wine is obvious, which is obviously different from that of alcohol blended wine. The liquor brewed with pure grain smells pure and full, while the liquor blended with alcohol smells very pungent. Pure grain wine tastes soft, and it does not dry mouth, choke throat, head or feel uncomfortable after drinking.
the second method of identifying grain wine: put a drop of white wine in the palm of your hand, and then cross your hands to make the two palms contact and rub hard for a few times. If the wine is heated, it will smell fragrant and stay for a long time; Liquor blended with alcohol, on the other hand, not only smells pungent and strange, but also has a short retention time and soon loses its flavor. (Spice additives are added to alcohol)
Method 3 for identifying grain wine: The most effective and accurate identification method at this time. Use sodium hydroxide, which is commonly known as caustic soda. Put the liquor to be tested in a test tube at the ratio of 5: 1 caustic soda, or use the cup that can be heated in our usual home, and then add hot water to boil for a few minutes. If it is grain-brewed liquor, the liquor in the test tube will turn yellow. If the color is very light, it is pure grain wine that is impure and contains alcohol blending ingredients. Do not change color for pure alcohol blending wine, because inferior liquor is blended with alcohol and spice sweeteners, and will not react chemically when encountering caustic soda.
Alcohol blended wine will sting the throat, nausea, heartburn, intense, dry mouth, thirst and head injury due to alcohol problems, while pure grain wine is fragrant but not choking, slightly bitter but not astringent, not choking the throat, not dry mouth, not head injury and uncomfortable after drinking, and will wake up quickly after drunkenness, with little irritation to human body.