1. Different brewing methods: Green longan mature vinegar is made from bamboo, corn and rice through washing, soaking, cooking, fermentation and aging. Red longan well vinegar is made from high-quality rice through elutriation, cooking, fermentation and aging.
2. Different aging time: The aging time of Qinglongan mature vinegar is short, usually around 1 year, so it is rich in sour taste and refreshing in taste. However, red longan well vinegar has a long aging time, generally more than 3 years, so it has a rich flavor and a softer taste.