Liu Biju's soy sauce is divided into 1 Jinshifu soy sauce stewed vegetables, 2 Jinshi solid soy sauce paste easy to carry cooking stir-fried dishes catering, 3 Jinshi soy sauce cold cooking stir-fried dishes seasoning, **** three kinds. Six Bijiu soy sauce garden store in Beijing, rumored to have been created in the middle of the Ming Dynasty. Hanging in the six Bijiu store in the gold plaque, rumor has it that the Ming Dynasty university scholar Yan Song inscription. Six Biju was originally a small store run by brothers Zhao Cunren, Zhao Cunyi and Zhao Cunli, who were from Linfen Xidu Village in Shanxi Province, specializing in selling firewood, rice, oil and salt. As the saying goes, "Open the door to seven things: firewood, rice, oil, salt, sauce, vinegar, tea."

These seven things are essential to people's daily lives. The Zhao brothers' small store, because it does not sell tea, was named Liubijiu.