What is the relationship between soy sauce, black bean sauce and black bean sauce?

Soy sauce is commonly known as soy sauce, so soy sauce and soy sauce are the same thing. Soy sauce is a food made by soaking soybeans or black beans thoroughly, steaming or boiling them and fermenting them. It can be used as seasoning or medicine. Soy sauce, fermented soybean oil and fermented soybean are all bean products.

Soy sauce is a traditional condiment in China. Liquid condiment brewed from beans, wheat and bran. It is reddish-brown, with unique sauce flavor and delicious taste, which helps to promote appetite. Soy sauce, commonly known as soybean oil, is mainly made of soybean, wheat and salt through oil making and fermentation. Mainly salty, but also fresh. It can increase and improve the taste of dishes, and can also increase or change the color of dishes. The working people in ancient China had mastered the brewing technology thousands of years ago. There are two kinds of soy sauce: soy sauce is salty and used for refreshing; Soy sauce is weak and used to enhance color.

Douchi is a traditional condiment for fermented bean products in China. Douchi is made by using black beans or soybeans as the main raw materials, decomposing soybean protein with Mucor, Aspergillus or bacterial protease, adding salt, wine and drying to inhibit the activity of enzymes and delay the fermentation process.