The cooking unit is sized to fit standard kitchen dimensions and operates on saturated steam, which can be supplied directly from the solar collectors or from a buffer tank. The desired temperature can be precisely regulated using an adjustable throttle (e.g., intermittent inlet). This system is scalable for use in commercial kitchens. One cooking pot has a capacity of approximately 20 liters. A single Oktosol unit can typically supply three connected modules. Its deployment in crisis regions can provide rapid and sustainable aid.