We have produced sake-lee bread and evaluated its rate of expansion, color, taste, aroma and physical
properties both by sensory and instrumental means to evaluate the effects of adding the sake
１） The rate of expansion（height of the bread）after baking has increased as a function of the
amount of sake lees added. The rate of expansion reached the maximum level at ７．５ to １０．０%
of added sake lees and began to diminish as the additive amount was further increased; at above
１７．５%, the rate of expansion became less than that of the non-sake-lee added（０%）bread. The
color of the crust of the bread, on the other hand, continually increased as the amount of the addi-
tive sake lees increased to assume the characteristic color of the bread.
２） With respect to physical properties by means of instrumentation, the texture of the bread which
contained between ２．５ to １２．５% of the sake lees was softer than others. When the sake-lee addi-
tion exceeded １５．０% the breads tended to harden. The hardening was assumed to be due to
the thickness of the crumb that accompanied the decreases in expansion.
３） With the objective of determining the optimal amount of the sake-lee addition, breads containing
０, ５．０, １０．０ and １５．０% of sake lees were baked and subjected to sensory evaluation. The check
list included the appearance, aroma, food texture, taste and overall evaluation. In overall assessment,
the ５.０% sake-lee bread was judged most superior, followed respectively by those containing
１０．０%, ０% and １５．０% of the sake lees. The ５．０% bread was significantly preferred at the
critical level of ５．０% when compared to the ０% bread. Incidentally, during the present testing,
it became clear that the food texture and taste were most important factors in overall quality of
the bread. In summary, advantages of using sake lees as an additive in bread has been demonstrated
and that addition in the range of ５．０ to １０．０% is the optimal additive level.