Preparation of rice crackers
Rice crackers were prepared by soaking milled glutinous rice in 20 C water for 16–18 h.
The moisture content of the drained rice was approximately 38 g/100 g on wet basis (wb).
The drained rice was crushed by double rollers into fine powder and steamed in a pressure cooker at 115 C for 12–13 min.
After steaming,
the resulting dough was kneaded two times and mixed with four levels of fish powder (0, 5, 10 and 15 g on weight of fish powder per 100 g of total weight basis) by a screw kneader until a homogeneous mixture was obtained.
The kneaded cake was placed in a cake vessel and cooled for three days at 2–4 C for hardening the texture.
The hard cake was cut into small pieces with approximate dimensions of 25 12.5 1.5 mm.
After that, the small pieces of hard cake were dried by hot air at 50–60 C to obtain the final moisture content of 16 g/100 g (wb) prior to frying.