Battered and breaded fish nuggets (BBFNs) were fried at three different temperatures (160, 170, and 180°C) for 30–180 s to study the mass transfer kinetics of moisture loss and fat absorption. The mass transfer mechanism was investigated through an analysis of microstructure, surface oil (SO), and penetrated surface oil (PSO) contents of fried BBFNs. The results showed that Fick’s second law of diffusion and the first-order kinetic model could well describe the kinetics of moisture loss and fat absorption of the crust, respectively. Transfer...