Sort of similar to how did the Chinese & Japanese get the right combination of aspergillus(which can cause all sort of skin & ear lesions, as well as ulcers in

Sort of similar to how did the Chinese & Japanese get the right combination of aspergillus(which can cause all sort of skin & ear lesions, as well as ulcers in humans, and is also what is known as black mold) along with a yeast to produce sake.