Practice. Lao Tan sauerkraut, anciently known as mince, is a pickled vegetable that is made from fresh mustard greens, salted or unsalted, with or without salt, white wine and other auxiliary ingredients, and placed in a clean earthenware altar to ferment for more than 10 days. Sauerkraut in Golden Soup is made from chicken broth, with sauerkraut, wild peppers, pickled peppers, and green onions and ginger simmered together. So the difference between sauerkraut in an old jar and sauerkraut in a golden broth is the practice. Sauerkraut, mainly found in northeastern China and Germany, also exists in southwest China.