1. Check whether the date mark on the beer bottle is obvious. When buying and drinking beer, you must first look for the label on the beer bottle or whether the bottle cap has an obvious production date and shelf life. There is a "B" on the outer wall of the bottle 2 cm away from the bottom of the bottle, as well as the manufacturer's logo and the year of production. Also check whether the beer is within the shelf life. The taste of beer that has exceeded the shelf life will be affected. The shelf life of high-quality beer is 120 days, while the shelf life of ordinary wine is 60 days.

2. Look at the price of beer. The production process of the genuine product is very strict, there is a unified network in the sales process, and the price is relatively stable. However, due to the simple production process and low production cost of the fake beer, the price of each bottle of beer will be about 1 yuan cheaper than the genuine product, or even more.

3. Check whether the outer packaging of the beer is exquisite. The outer packaging is a direct manifestation of the equipment level of the beer company. If the beer outer packaging is more exquisite, the equipment level and management level of the company will be higher, and the corresponding quality level will be higher. On the contrary, if the packaging is simple and the quality is rough, the company's production capacity, equipment level, technical management and business management level will be correspondingly low.

4. Look at the beer label. The text used on the genuine wine label is accurate, the pattern is clear, the paper is smooth, the overall look is shiny, and the content introduction is also very detailed; while the printing on the fake beer label is rough, the color is easy to fall off, the paper is rough, and there are rough edges but no luster , the factory name, address and other expressions are vague.

5. Look at the beer bottle cap. The genuine bottle cap is firm, bites the bottle mouth evenly, looks comfortable, the pattern and production date on it are very clear, and the inner lining is made of injection molded gaskets; while the fake beer bottle cap is easy to loosen, the bite mouth is uneven, and the bottle cap is The patterns also tend to be blurry and the linings use film spacers.

6. Look at the beer bottle. The genuine bottle has a uniform standard shape, feels good when held, and has no traces of friction on the bottle. There is a "B" on the outer wall of the bottle 2 cm from the bottom and is also marked with the year of production; while the fake beer bottle has a messy shape. "B" bottles and non-"B" bottles are mixed together, the names of the bottle manufacturers are not uniform, and the bottles have been rubbed many times.

7. Look at the quality of the beer. The color of genuine light beer should be light yellow or golden, and dark beer should be reddish brown or light brown. The liquid should be clear and transparent, with rich, delicate, white and long-lasting foam. When inhaling above the beer, there should be a fresh hop aroma; Dark beer should also have the aroma of malt, be pure in the mouth, have sufficient carbon dioxide, and feel soft and refreshing; while fake beer should have a darker color, less foam that disappears quickly, an aging smell, and some impurities or sediments.