1, production process: Haitian soybean paste uses the traditional production process, after the fermentation of soybeans, and then after a long time of precipitation, layers of filtration and padding press eggs to make, and in the process added a lot of salt and spices. Donggu soybean paste, on the other hand, is brewed using the brewing method, which is a much more delicate and tedious process that involves a number of procedures, such as bean grinding, soaking, juice grinding, surface molding, kneading, and long fermentation.

2, flavor: Haitian soybean paste has a heavy salty and soy sauce flavor, suitable for marinade, stir-fry and other dishes, to add color to the dishes. While Donggu soybean paste has a softer and more complex flavor, suitable for cooking a variety of dishes, adding layers and flavors to the dishes.