1. Carefully observe the outer packaging of Caohuang Yujiu Pride. When purchasing it, be sure to carefully observe its wine box packaging and carefully review the brand’s trademark, production address, certificate, production date, etc. . 2. Carefully observe the bottles and caps of Caohuangyu Wine. Currently, most wine bottle caps are anti-theft caps. This type of bottle cap is very convenient to open and has a tight seal. 3. Shake the bottle of Caohuangyu Wine and observe the wine. You can hold the bottle in your hand and shake it a few times. Pour it into a transparent glass and observe the wine in the cup. If there are sinking impurities and suspended matter, it means that the wine is in the wine. There are more additives. There must be no turbidity or floating matter in the real wine. 4. Pour the wine into a glass and smell the aroma. Pour the wine into a colorless and transparent glass. Observe carefully. Real wine is transparent and does not have any suspended matter. Then, close to the cup and smell the aroma carefully. Drink a small amount on your tongue. Spread it on the surface to identify the taste of the wine. It really has a strong fragrance in the mouth and is soft and soft.