Bread
Two kinds of bread with relatively different mechanical properties were involved in the
experiments, rye breads containing 70 % rye flour and white breads containing 100% wheat
flour. Because of lack of gluten the structure of rye breads are more homogenous, the crumb is
harder, and less elastic, cells are smaller and cell walls are thicker than that of white breads.
Loaves were stored at ambient temperature covered with linen towels. Breads were cut to 15
mm thick slices before measurements, the first 3 slices of the both ends of the loaves were left
out of measurements. In case of white bread the number of samples was in average 11 while in
case of rye bread it was 8 slices/bread.