PURPOSE: Roasted black soybeans are dipped in SHOCHU (Japanese distilled spirit) and the resultant black soybean liquor is combined with Japanese plum liquor to produce the objective black soybean-Japanese plum liquor that has good taste and improves blood circulation.

CONSTITUTION: Black soybeans are washed, drained thoroughly and roasted with weak fire. The roasted black soybeans and sugar are placed in a vessel and SHOCHU is poured into the vessel. The vessel is closed with a lid and stood for more than three months to prepare roasted soybean liquor. In the meantime, unriped Japanese plums, sugar and SHOCHU are used to prepare plum liquor, which is mixed with the above black soybean liquor to produce the objective black soybean-Japanese plum liquor.