A gas burner system for food cooking appliances is provided. The system includes a gas supplying duct for delivery of gas to burner system. A first sump and a second sump are coupled to the duct through a pair of nozzles, such that the first and second sumps mix primary air with gas delivered by the duct. A pair of Venturi effect chambers are connected to the first sump and second sump respectively, and are inclined towards a pair of concentric burner components that include an outer burner component and an inner burner component. The Venturi effect chambers direct the air-gas mixture to the inner and outer burner components. Caps are provided over the first and second burner components.