It is true that Laobaigan Wine sells bare bottles of wine for 13 yuan.

1. It can be distinguished by trademark. The authentic registered trademark of Hengshui Laobaigan is the well-known trademark Hengshui brand, and the counterfeit products are not Hengshui trademarks.

2. Distinguish through the five characters of Hengshui Laobaigan. The five characters of Hengshui Laobaigan are proprietary fonts approved by the National Patent Committee. The writing methods of these five characters in counterfeit products are different.

3. The authentic Hengshui Laobaigan is Laobaigan fragrance, while most counterfeit products are labeled as light fragrance or strong fragrance.