In order to elucidate the effect of sugar composition on the water sorption and softening properties of
cookie, three types of sugar composition (sugar alone, sugar-trehalose, and sugar-sorbitol) were
employed as an ingredient of cookie, and softening temperature (Ts) of the cookie samples, adjusted to
various water contents, was investigated using thermal rheological analysis. Ts decreased linearly with
increasing water content of the cookie samples.