The majority of modern cereal baking ovens are tunnel ovens with multiple zones, each of which is individually controlled. A baking profile is set by the oven operator, which describes the target temperatures and air velocities in each of the zones along the length of the oven. There may be up to ten zones in modern tunnel ovens; it is thus a complex procedure to generate an optimum profile. A computer numerical model was developed to model the baking process and to make predictions of the biscuit temperature, heat flux and moisture content through the bake.