The invention discloses a
brewing method of light soy sauce. The
brewing method of the light soy sauce disclosed by the invention comprises the following steps: (a), activating an
aspergillus oryzae strain and a
mucor strain; (b), preparing a pure bean pulp culture medium, sterilizing, cooling, inoculating the activated
mucor, and culturing to obtain a
mucor koji
starter; (c), carrying out enlarged cultivation of the mucor mould
starter to obtain a mucor finished koji; (d), preparing a bean pulp flour culture medium, sterilizing, cooling, inoculating the activated
aspergillus oryzae, culturing to obtain an
aspergillus oryzae koji
starter, and carrying out enlarged cultivation to obtain an
aspergillus oryzae finished koji; (e), mixing the mucor finished koji with the
aspergillus oryzae finished koji according to a proportion, adding water and salt, and fermenting to obtain soy sauce paste mash; and (f), hanging and filtering the soy sauce paste mash, and clarifying
precipitation to obtain the light soy sauce. The disadvantages in the existing light soy sauce production technology are overcome by using the method disclosed by the invention; the method disclosed by the invention is simple and easy to operate; extra equipment investment and post-treatment processes are unnecessary; the implementation performance is high; the prepared light soy sauce is enriched in
nutrition and full-bodied in fragrance; all the physicochemical indexes of the light soy sauce beyond those of the
national standard special soy sauce, and thus, the
brewing method of the light soy sauce disclosed by the invention is wide in market application prospect.