A novel far-infrared(FIR) thermal reduction process was used to reduce graphene oxide films effectively for supercapacitor electrode applications. The binder-free graphene oxide films used in this study were produced by electro-spray deposition of a graphene oxide colloidal solution onto a substrate. The reduction of graphene oxide was performed using a commercial FIR convection oven that is ubiquitous in homes for cooking and heating food. The reduction process incorporated a simple, one-step FIR irradiation carried out in ambient air. Further, the FIR irradiation process was completed in ~3 minutes, wherein neither special atmosphere nor high temperature was employed, resulting in an economic, efficient and simplified processing technique. The as-produced FIR graphene electrode gave a specific capacitance of ~320 F/g at a current density of ~0.2 A/g with less than 94% loss in specific capacitance over 10,000 charge/discharge cycles. This is one of the best specific capacitances reported for all-carbon electrodes without any additives. Even at fast charge/discharge rates, the measured energy and power densities of the FIR supercapacitors were found to be ~3-6 times higher than commercial(activated carbon) supercapacitor devices. This excellent electrochemical performance of the FIR graphene coupled with its ease of production(in air at low temperatures) using a commercial home-use FIR convection oven indicates the significant potential of this concept for large-scale commercial electrochemical supercapacitor applications.