Small black beans and big black beans are the same species, but their application ranges are somewhat different.

small black beans are usually used as ingredients, which are available in almost every family in daily life.

Black bean can also be used as stone, but it is more used for medicine. Black bean has always been used to tonify the kidney. Traditional Chinese medicine has always been tangible and shape-supplementing. The shape of black bean resembles the kidney, and it has been found by contemporary experts that the ingredients of black bean have the effect of tonifying the kidney. It is very good to make porridge with black bean and Lycium barbarum.