Stack height, stack weight, specific volume, color, moisture
and pH of the end products were determined. The stack height
and stack weight were measured using seven sample pieces.
The stack height was measured by a vernier caliper (Sakara,
electronic digital vernier caliper), measuring once and turning
the crackers 90 and measuring again to obtain the average
value. The cracker specific volume was determined by dividing
the volume by weight. The pH of samples was measured
according to method 943.02 AOAC [8] in a glass electrode
pH-meter Jenway-3505. All measurements were conducted at
least three times.