According to the second production method, space for fermentation, which is required in the case of the first method, is not needed, resulting in much simper (or much more economical) production facilities than those of the first production method.
製法2.については製法1.のように発酵のために必要なスペースが不要となり、そのため製造設備もはるかに簡素ですむ（つまり設備投資が安い）。