The convective heat transfer boundary conditions were assigned at the outer sample surfaces exposed to air with heat transfer coefficient of h ¼ 20 W m2 K1. The measured dielectric properties of peanuts were entered into the Joule heating module to solve the coupled quasi-static electromagnetic and heat transfer equations. All computer simulations were performed on a Dell workstation with an Intel® Core™ i5-2400, 3.10-GHz processor and 8 GB RAM running a Windows 8.1 64-bit operating system. The direct linear system solver (UMFPACK) was used with a relative
tolerance and absolute tolerance of 0.01 and 0.001, respectively, with the initial and maximum time steps of 0.001 s and
0.1 s. The simulated sample temperature was further used to confirm the experimental data