Fig. 1), less freezable water is retained inside the frozen crumb.
Such a decrease of water content contributes to an undesired
drying, and hence hardening, of the frozen bread.
Besides, freezable water also redistributes remarkably within
the frozen crumb. This is first evidenced with the drastically
elevated sample-to-sample variations for the frozen bread. As given
in Fig. 2 by the standard errors that represented the variations
among samples, though existing among fresh crumb samples as
well, they were significantly larger among the frozen samples. Thus
the bread upon a prolonged storage becomes very heterogeneous
in crumb moisture as a result of the in-crumb redistribution of
water. It is expected that this in-crumb redistribution of water play
a central role in the growth, and recrystallization, of ice crystals in
the frozen bread.