1. Looking at the anti-counterfeiting label of wine, the genuine anti-counterfeiting label can have different pattern changes at different angles, and the anti-counterfeiting line can be torn off; The anti-counterfeiting mark of fake wine is dull, the pattern transformation is not obvious, and the anti-counterfeiting line is sometimes printed.

2. In sensory identification of the aroma of liquor, it is best to use a glass with a big belly and a small mouth, pour the liquor into the glass and shake it slightly, and immediately smell its aroma carefully with your nose near the mouth of the glass. Or pour a few drops of wine on the palm of your hand, rub it a few times, and then smell the palm of your hand, so that you can identify whether the intensity of the fragrance and the fragrance type are normal.

3. The normal color of liquor should be colorless and transparent, with no suspended matter and sediment. Pour the white wine into the cup, and there shall be no ring-shaped insoluble matter on the wall of the cup. Turn the bottle upside down and observe the wine body in the light, without suspended matter, turbidity and precipitation. In winter, if there is precipitation in liquor, it can be heated to 3 ~ 4℃ in water bath, and if the precipitation disappears, it will be normal.

4. Take a drop of edible oil and drop it into the wine. If it can spread regularly and sink evenly, it will be a high-quality wine; otherwise, if it spreads irregularly, it will not sink obviously, it will be a poor-quality wine.

Extended data:

Identification of other features

(1) Marking features: Identification according to the marking features on the package. For example, Maotai, Wuliangye and Xifeng have a concave-convex feeling on their packaging, while the font on the packaging of fake and inferior wines is flat, with poor or no concave-convex feeling.

(2) bottle cap features: identification is made according to different materials, patterns, colors and structures. For example, the genuine bottle cap of Fenjiu is made of imported aluminum materials, and the threaded cap is printed with the pattern of "Gujing Pavilion", which is neat and clear. The inner wall of the cap is silvery white, with an elastic white hard plastic pad inside, and the seal is neat.

(3) bottle type characteristics: identify the bottle according to its shape, production quality and other characteristics. For example, there are two types of genuine Wuliangye bottles: drum-shaped (commonly known as radish bottles) and wheat-ear-shaped. The bottles are made of fine materials, with a round bottom and regular protruding stripes around them. Fake Wuliangye bottles are messy, including square, cylindrical and some irregular shaped bottles.

Baidu encyclopedia: wine identification