A mathematical model of heat and moisture transfer in a infinite slab undergoing immersion frying was solved using a three step procedure: a coordinate transformation of the partial differential equations, application of the finite difference method of Crank-Nicolson to produce a series of non-linear algebraic equations, and Gauss-Seidel iteration for solution of tile equations. Simulation output consisted of temperature profiles, moisture profiles, average moisture content, moisture transfer flux rates and crust thickness data. Tile model was verified by comparison of the predicted temperature profiles, average moisture content, and crust thickness with experimental data. A goon agreement between the predicted and experimental data was obtained.