1. Raw materials: Hengshun balsamic vinegar and Jinyou balsamic vinegar are all brewed from selected high-quality superior sorghum and rice, while Zhenjiang balsamic vinegar is made from high-quality glutinous rice.

2. Brewing time: The brewing time of Hengshun balsamic vinegar is relatively short, generally 3-6 months, that of Jinyou balsamic vinegar is more than 6 months, and that of Zhenjiang balsamic vinegar needs at least one year.